William Jarnagin, MD
NPI 1851373450 · Surgery Physician · New York, NY
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Jarnagin, MD is a Surgery Physician provider in New York, NY (NPI 1851373450).
Provider details
- NPI number
- 1851373450
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 202571 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
353 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 80 | $200 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 64 | $110 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 56 | $147 |
| Ultrasonic Guidance During Surgery76998 | 37 | $52 |
| Partial Removal of Pancreas, Bile Duct, and Small Bowel With Connection of Pancreas to Small Bowel48150 | 34 | $3,577 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 125 | 42 |
| Lipase/Protease/Amylasebrand: Creon | 108 | 36 |
| Lipase/Protease/Amylasebrand: Zenpep | 69 | 16 |
| Ursodiol | 18 | — |
| Cyclobenzaprine Hcl | 14 | — |
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
Registry dates
- Enumerated
- 2005-11-18
- Last updated
- 2015-04-06
Frequently asked questions
- What is William Jarnagin's NPI number?
- William Jarnagin's National Provider Identifier (NPI) is 1851373450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Jarnagin's specialty?
- William Jarnagin is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Jarnagin located?
- William Jarnagin's practice location on file with NPPES is 1275 York Ave, New York, NY 10021-6007.
- What is William Jarnagin's phone number?
- The practice phone number listed in the NPPES registry for William Jarnagin is (212) 639-2000.
- Does William Jarnagin accept Medicare?
- William Jarnagin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Jarnagin's NPI active?
- Yes — William Jarnagin's NPI (1851373450) is active in the NPPES registry as of the last update on 2015-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.