What is John Graybill's NPI number?

John Graybill's National Provider Identifier (NPI) is 1033312863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Graybill's specialty?

John Graybill is listed in the NPPES registry with a primary specialty of Trauma Surgery Physician (Allopathic & Osteopathic Physicians).

Where is John Graybill located?

John Graybill's practice location on file with NPPES is 4650 Taylor Rd Dept of, Bethesda, MD 20889-4504.

What is John Graybill's phone number?

The practice phone number listed in the NPPES registry for John Graybill is (301) 295-4400.

Does John Graybill accept Medicare?

John Graybill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is John Graybill's NPI active?

Yes — John Graybill's NPI (1033312863) is active in the NPPES registry as of the last update on 2025-12-01.

IndividualActiveAccepts Medicare

John Graybill, M.D.

NPI 1033312863 · Trauma Surgery Physician · Bethesda, MD

Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)

John Graybill, M.D. is a Trauma Surgery Physician provider in Bethesda, MD (NPI 1033312863).

Provider details

NPI number: 1033312863
Entity type: Individual
Primary specialty: Trauma Surgery PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 0101240898 (VA)

Specialties & taxonomies

Trauma Surgery PhysicianPrimary2086S0127XLicense D0102165 (MD)
Allopathic & Osteopathic Physicians
Trauma Surgery Physician2086S0127XLicense 0101240898 (VA)
Allopathic & Osteopathic Physicians
Surgical Critical Care Physician2086S0102XLicense 0101240898 (VA)
Allopathic & Osteopathic Physicians
Surgery Physician208600000XLicense 0101240898 (VA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(98/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

4650 Taylor Rd Dept of

Bethesda, MD 20889-4504

Phone: (301) 295-4400

Street-level locationGet directions

More MD providers

Mailing address

6201 Greenleigh Ave Fl 2

Middle River, MD 21220-2004

Additional practice locations (2)

1800 Orleans St
Baltimore, MD 21287-0010
Phone: (410) 502-2037
Fax: (410) 955-0737
11116 Medical Campus Rd
Hagerstown, MD 21742-6710
Phone: (301) 790-8380

Enumerated: 2007-06-08
Last updated: 2025-12-01
Certified: 2025-12-01

Frequently asked questions

What is John Graybill's NPI number?: John Graybill's National Provider Identifier (NPI) is 1033312863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is John Graybill's specialty?: John Graybill is listed in the NPPES registry with a primary specialty of Trauma Surgery Physician (Allopathic & Osteopathic Physicians).
Where is John Graybill located?: John Graybill's practice location on file with NPPES is 4650 Taylor Rd Dept of, Bethesda, MD 20889-4504.
What is John Graybill's phone number?: The practice phone number listed in the NPPES registry for John Graybill is (301) 295-4400.
Does John Graybill accept Medicare?: John Graybill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is John Graybill's NPI active?: Yes — John Graybill's NPI (1033312863) is active in the NPPES registry as of the last update on 2025-12-01.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.