John Christopher Graybill, M.D.
General Surgery (CMS) · Bethesda, MD
At a glance
4650 Taylor Rd Dept Of, Bethesda, MD 20889-4504
Published activity: Colonoscopy · Removal of tissue. View counts and coverage
NPPES record updated Dec 1, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
4650 Taylor Rd Dept OfBethesda, MD 20889-4504
Additional reported practice locations
1800 Orleans StBaltimore, MD 212870010
Phone: 4105022037
Fax: 4109550737 11116 Medical Campus Rd
Hagerstown, MD 217426710
Phone: 3017908380
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2005
- CMS specialties
- General Surgery
Practice groups
Reported hospital affiliations
- Johns Hopkins Bayview Medical Center Baltimore, MD
- Meritus Medical Center Hagerstown, MD
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 1-10 |
| Removal of tissue | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- General Surgery (CMS)
- Taxonomy code
- 2086S0127X
- Enumeration date
- Jun 8, 2007
- Record updated
- Dec 1, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
2086S0127X
License reported: 0101240898 VA
2086S0102X
License reported: 0101240898 VA
2086S0127X · Primary
License reported: D0102165 MD
208600000X
License reported: 0101240898 VA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
4650 Taylor Rd Dept OfBethesda, MD 20889-4504
- Phone
- (301) 295-4400
Mailing address
6201 GREENLEIGH AVE FL 2MIDDLE RIVER, MD 212202004
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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