John Butler, M.D.
NPI 1447303458 · Surgery Physician · Gaithersburg, MD
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Butler, M.D. is a Surgery Physician provider in Gaithersburg, MD (NPI 1447303458).
Provider details
- NPI number
- 1447303458
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 17730 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
2 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 53 | 51 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 700 2nd St NeDepartment of General SurgeryWashington, DC 20002-8100Phone: (202) 346-3850Fax: (202) 346-3626
Registry dates
- Enumerated
- 2007-01-21
- Last updated
- 2021-06-10
- Certified
- 2021-06-10
Frequently asked questions
- What is John Butler's NPI number?
- John Butler's National Provider Identifier (NPI) is 1447303458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Butler's specialty?
- John Butler is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Butler located?
- John Butler's practice location on file with NPPES is 655 Watkins Mill Rd Fl 6, Gaithersburg, MD 20879-3301.
- What is John Butler's phone number?
- The practice phone number listed in the NPPES registry for John Butler is (240) 632-4475.
- Does John Butler accept Medicare?
- John Butler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Butler's NPI active?
- Yes — John Butler's NPI (1447303458) is active in the NPPES registry as of the last update on 2021-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.