HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Diana Lynn Dickens, MD with clinicians in the same registry specialty: Specialty details in registry.

HOUSTON, TX · Exact areaEdit location

2024 published service data · 22 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ashish Asawa, MD

Allergy/Immunology · Internal Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
80%Service-mix similarityView profile →

Patricia A. Leonard, M.D.

Specialty details in registry · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
78%Service-mix similarityView profile →

Michelle Joseph, MD

Allergy/Immunology (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
78%Service-mix similarityView profile →

Doanh Nguyen, MD

Allergy/Immunology · Family Practice (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
78%Service-mix similarityView profile →

Ronald J. Negrich, M.D.

Allergy/Immunology (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
77%Service-mix similarityView profile →

Rama Rao Yerramsetti, M.D.

Allergy/Immunology · Pediatric Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
76%Service-mix similarityView profile →

Christopher R. Collaco, M.D.

Allergy/Immunology (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for multiple injections of allergen (95117)
76%Service-mix similarityView profile →

Grant Pickett, MD

Allergy/Immunology · Internal Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
75%Service-mix similarityView profile →

Yoshiko Nonesupplied Ogawa-Reel, MD

Allergy/Immunology · Internal Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for multiple injections of allergen (95117)
73%Service-mix similarityView profile →

Glenn B. Kline, MD

Allergy/Immunology (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
71%Service-mix similarityView profile →

Duyen Kim Nguyen, D.O.

Allergy/Immunology (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
71%Service-mix similarityView profile →

Douglas Kurt Schreiber, M.D.

Specialty details in registry · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for preparation and provision of 1 or more antigens (95165)
68%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.