William Shay, MD
NPI 1033198627 · Internal Medicine Physician · Provincetown, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Shay, MD is a Internal Medicine Physician provider in Provincetown, MA (NPI 1033198627).
Provider details
- NPI number
- 1033198627
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 151526 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
140 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 93 | $7 |
| Urinalysis, Manual Test81002 | 23 | $3 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 13 | $14 |
| Electrocardiogram, Routine Ecg With 12 Leads; Tracing Only, Without Interpretation and Report, Performed As a Screening for the Initial Preventive Physical ExaminationG0404 | 11 | $7 |
Typical Medicare-allowed amounts for these services range $3–$14 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 173 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 702 | 188 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 413 | 44 |
| Lisinopril | 372 | 95 |
| Valsartan | 322 | 93 |
| Rosuvastatin Calcium | 319 | 111 |
| Omeprazole | 312 | 90 |
| Tamsulosin Hcl | 253 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-11
- Last updated
- 2011-12-30
Frequently asked questions
- What is William Shay's NPI number?
- William Shay's National Provider Identifier (NPI) is 1033198627, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Shay's specialty?
- William Shay is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Shay located?
- William Shay's practice location on file with NPPES is 49 Harry Kemp Way, Provincetown, MA 02657.
- What is William Shay's phone number?
- The practice phone number listed in the NPPES registry for William Shay is (508) 487-9395.
- Does William Shay accept Medicare?
- William Shay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Shay's NPI active?
- Yes — William Shay's NPI (1033198627) is active in the NPPES registry as of the last update on 2011-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.