A DIFFERENT WAY TO EXPLORE

Similar work.
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Compare the published Medicare service mix of Grace Chen, MD with clinicians in the same registry specialty: Anesthesiology (CMS).

PORTLAND, OR · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kimberly Marie Mauer, M.D.

Anesthesiology · Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Daily hospital management of continuous spinal drug administration (01996)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
84%Service-mix similarityView profile →

David Matthew Sibell, M.D.

Anesthesiology · Interventional Pain Management · Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
63%Service-mix similarityView profile →

Sandy Christiansen, M.D.

Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
55%Service-mix similarityView profile →

Joseph Paul Stapleton, MD

Anesthesiology · Interventional Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
48%Service-mix similarityView profile →

Andrew H Oh, M.D.

Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint (64635)
48%Service-mix similarityView profile →

Kathryn Ashley Price, M.D.

Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint (64635)
47%Service-mix similarityView profile →

Stuart M Rosenblum, MD, PHD

Specialty details in registry · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
46%Service-mix similarityView profile →

Andrei D Sdrulla, MD, PHD

Anesthesiology · Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
45%Service-mix similarityView profile →

Ashley Gardner, M.D., M.S., PHD

Anesthesiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Daily hospital management of continuous spinal drug administration (01996)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
44%Service-mix similarityView profile →

Salman Hirani, MD

Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
44%Service-mix similarityView profile →

Richard Wenxi Gao, M.D.

Anesthesiology · Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
40%Service-mix similarityView profile →

Thomas F Schrattenholzer, MD

Anesthesiology · Pain Management (CMS) · Portland, OR

Shared published services
2 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
29%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.