William Doerfler, MD
NPI 1063946937 · Endocrinology, Diabetes & Metabolism Physician · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Doerfler, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Pittsburgh, PA (NPI 1063946937).
Provider details
- NPI number
- 1063946937
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD470231 (PA)
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
9 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
75 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 21 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 16 | $112 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 14 | $159 |
| Telephone, Internet, Or Electronic Health Record Assessment and Management With Written Report By Consulting Physician, at Least 5 Minutes99451 | 13 | $33 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 11 | $127 |
Typical Medicare-allowed amounts for these services range $33–$159 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 40 | 16 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 32 | 18 |
| Levothyroxine Sodium | 30 | 13 |
| Dulaglutidebrand: Trulicity | 27 | — |
| Metformin Hclbrand: Metformin Hcl Er | 22 | 11 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-17
- Last updated
- 2024-01-03
- Certified
- 2024-01-03
Frequently asked questions
- What is William Doerfler's NPI number?
- William Doerfler's National Provider Identifier (NPI) is 1063946937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Doerfler's specialty?
- William Doerfler is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is William Doerfler located?
- William Doerfler's practice location on file with NPPES is 3601 5th Ave Ste 3b, Pittsburgh, PA 15213-3403.
- What is William Doerfler's phone number?
- The practice phone number listed in the NPPES registry for William Doerfler is (412) 586-9700.
- Does William Doerfler accept Medicare?
- William Doerfler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Doerfler's NPI active?
- Yes — William Doerfler's NPI (1063946937) is active in the NPPES registry as of the last update on 2024-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.