William Reed Doerfler, MD
Endocrinology, Diabetes & Metabolism Physician · Pittsburgh, PA
William Reed Doerfler, MD is an endocrinology, diabetes & metabolism physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1063946937, issued on Apr 17, 2017. Check the license (Pennsylvania MD470231, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- William Reed Doerfler
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- MD470231 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3601 5TH Ave Ste 3B, Pittsburgh, PA 15213
- Phone
- (412) 586-9700
- Enumerated
- Apr 17, 2017
- Record last updated
- Jan 3, 2024
- Medicare enrollment
- Enrolled (PECOS I20201022003898); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 485 in Pennsylvania → Look up another NPI →
Also registered at 3601 5TH Ave Ste 3B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Bauer, MDEndocrinology, Diabetes & Metabolism Physician1477161362
- Georgina Burrows, MS RD LDNRegistered Dietitian1528653219
- Erin Doyle, CRNPFamily Nurse Practitioner1093281388
- Jillian Herschlag, MS, RDRegistered Dietitian1194339390
- Erin Kershaw, MDEndocrinology, Diabetes & Metabolism Physician1346228228
- Raphael Lopez, PAMedical Physician Assistant1760206387
Verify William Reed Doerfler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD470231Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
383 Medicare Part D claims for 107 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Ozempic40 claims
- Lantus Solostar32 claims
- Levothyroxine Sodium30 claims
- Trulicity27 claims
- Metformin Hcl Er22 claims
- Nano 2nd Gen Pen Needle19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Pittsburgh PhysiciansPittsburgh, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Reed Doerfler among 485 endocrinology, diabetes & metabolism physician records in Pennsylvania
William Reed Doerfler, MD is one of 485 endocrinology, diabetes & metabolism physician records with a practice address in Pennsylvania. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 86% of them.
- NPI issued2017 · 86% of these records are older, 12% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2017 · median 2004 among the 334 with a school on file
- Record last updated2024 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Pennsylvania
There are 485 endocrinology, diabetes & metabolism physician records in Pennsylvania.
All 485 in Pennsylvania → Every provider in Pittsburgh → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Ronald Codario, M.D.Pittsburgh, PA 152131568655900
- Pouneh Fazeli, MDPittsburgh, PA 152131497732887
- Melody Ives, CRNPPittsburgh, PA 152131003985250
- Esra Karslioglu FrenchPittsburgh, PA 152131093907305
- Erin Kershaw, MDPittsburgh, PA 152131346228228
- Helena LevittPittsburgh, PA 152131699988493
- Hussain MahmudPittsburgh, PA 152131336333210
- Jason Ng, M.D.Pittsburgh, PA 152131619135795
Common questions
What is William Reed Doerfler, MD's NPI number?
William Reed Doerfler, MD's National Provider Identifier (NPI) is 1063946937, issued on Apr 17, 2017. An NPI identifies a provider in billing; it is not a license.
Where is William Reed Doerfler, MD located?
The NPPES record lists a practice address at 3601 5TH Ave Ste 3B, Pittsburgh, PA, 15213. Phone: (412) 586-9700. Providers update this record themselves, so call before visiting.
How can I verify William Reed Doerfler, MD's license?
NPPES lists Pennsylvania license number MD470231, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Reed Doerfler, MD prescribe under Medicare Part D?
In 2024, William Reed Doerfler, MD had 383 Medicare Part D claims for 107 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is William Reed Doerfler, MD's MIPS final score?
The 2023 MIPS final score is 77.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.