Warren H. Zager, M.D.
Otolaryngology Physician · Norristown, PA
Warren H. Zager, M.D. is an otolaryngology physician with a practice address in Norristown, Pennsylvania, and NPI 1316900897, issued on Apr 7, 2006. Check the license (Pennsylvania MD-071488L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Warren H. Zager
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- MD-071488L PA
Self-reported in NPPES; status is on the state search - Practice location
- 306 W Logan St, Norristown, PA 19401
- Phone
- (610) 275-6153
- Enumerated
- Apr 7, 2006
- Record last updated
- Apr 29, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (610) 278-7709
- Medicaid ID
- 0019585500001 PA
- Medicare enrollment
- Enrolled (PECOS I20031119000245); accepts Medicare assignment
- Medical or professional school
- University Of Miami, Lm Miller School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 531 in Pennsylvania → Look up another NPI →
Also registered at 306 W Logan St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara Casoy, AUDIOLOGISTAudiologist1912107293
- Alan Miller, M.D.Otolaryngology Physician1932162930
- Sarah Nowling, AUDAudiologist1467873166
- Douglas Price, PAMedical Physician Assistant1346220084
- Allison Singer, AUDAudiologist1114251394
- Cynthia Wanger, M.A.Audiologist1184896052
Verify Warren H. Zager in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD-071488LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% more Medicare Part D claims than the average otolaryngology physician in 2024
946 Medicare Part D claims for 322 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Famotidine214 claims
- Ipratropium Bromide212 claims
- Pantoprazole Sodium105 claims
- Fluticasone Propionate75 claims
- Montelukast Sodium68 claims
- Triamterene-Hydrochlorothiazid35 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): 95.8 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 2 group practices
- Phoenix Rehabilitation And Health Services IncCranberry Twp, PA
- Pinnacle Ent Alliance LLCSpring House, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Warren H. Zager among 531 otolaryngology physician records in Pennsylvania
Warren H. Zager, M.D. is one of 531 otolaryngology physician records with a practice address in Pennsylvania. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 53% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1997 · median 2002 among the 355 with a school on file
- Record last updated2008 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Pennsylvania
There are 531 otolaryngology physician records in Pennsylvania.
All 531 in Pennsylvania → Every provider in Norristown → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Alan Berger, MDNorristown, PA 194011750465266
- Staci LevickNorristown, PA 194011669556171
- Alan Miller, M.D.Norristown, PA 194011932162930
- Lana Patitucci, D.O.East Norriton, PA 194011427287531
- Timothy Downey, M.D.West Grove, PA 193901225124043
- Mark Beaugard, M.D.West Chester, PA 193801013092519
- Jenny MaWest Chester, PA 193801114424553
- Jeffrey Buckwalter, MDLansdale, PA 194461831252915
Common questions
What is Warren H. Zager, M.D.'s NPI number?
Warren H. Zager, M.D.'s National Provider Identifier (NPI) is 1316900897, issued on Apr 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Warren H. Zager, M.D. located?
The NPPES record lists a practice address at 306 W Logan St, Norristown, PA, 19401. Phone: (610) 275-6153. Providers update this record themselves, so call before visiting.
How can I verify Warren H. Zager, M.D.'s license?
NPPES lists Pennsylvania license number MD-071488L, 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 Warren H. Zager, M.D. prescribe under Medicare Part D?
In 2024, Warren H. Zager, M.D. had 946 Medicare Part D claims for 322 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Warren H. Zager, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.8 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.