John Hamilton, MD
NPI 1992961312 · Anesthesiology Physician · Berlin, MD
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hamilton, MD is a Anesthesiology Physician provider in Berlin, MD (NPI 1992961312).
Provider details
- NPI number
- 1992961312
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D75194 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
393 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 82 | $42 |
| Ultrasound of Heart With Probe in Esophagus, With Report93312 | 63 | $102 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 62 | $3 |
| Ultrasound of Heart Blood Flow, Valves and Chambers93320 | 38 | $17 |
| Insertion of Tube in Pulmonary Artery for Monitoring93503 | 34 | $84 |
| Anesthesia for Procedure on Heart and Large Blood Vessels00560 | 30 | $485 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$59 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-05
- Last updated
- 2018-10-09
Frequently asked questions
- What is John Hamilton's NPI number?
- John Hamilton's National Provider Identifier (NPI) is 1992961312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hamilton's specialty?
- John Hamilton is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Hamilton located?
- John Hamilton's practice location on file with NPPES is 14 Meadow St, Berlin, MD 21811-1300.
- What is John Hamilton's phone number?
- The practice phone number listed in the NPPES registry for John Hamilton is (301) 922-6772.
- Does John Hamilton accept Medicare?
- John Hamilton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hamilton's NPI active?
- Yes — John Hamilton's NPI (1992961312) is active in the NPPES registry as of the last update on 2018-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.