NPPES file of Aug 9, 2026

Jason A. Yahwak, M.D.

Pulmonary Disease Physician · South Portland, ME

Jason A. Yahwak, M.D. is a pulmonary disease physician with a practice address in South Portland, Maine, and NPI 1598868747, issued on Sep 6, 2006. Check the license (Maine 15752, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598868747
Name
Jason A. Yahwak
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License numbers
15752 ME
22296 NH
Self-reported in NPPES; status is on the state search
Practice location
100 Foden Road, South Portland, ME 04106
Phone
(207) 828-1122
Enumerated
Sep 6, 2006
Record last updated
Jun 15, 2022
Fax
(207) 828-0188
Medicare enrollment
Enrolled (PECOS I20050607001119); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 1998
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 100 Foden Road

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jennifer Agren, MDPulmonary Disease Physician1649430893
  2. Peter Bates, M.D.Pulmonary Disease Physician1649203373
  3. George Bokinsky, M.D.Pulmonary Disease Physician1568574853
  4. Stephen Gorman, D.O.Pulmonary Disease Physician1811931876
  5. M. Knauft, M.D.Pulmonary Disease Physician1316040538
  6. Heather Livingston Lavallee, FNPFamily Nurse Practitioner1841569720

Verify Jason A. Yahwak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license 15752
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maine license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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55% more Medicare Part D claims than the average pulmonary disease physician in 2024

2,209 Medicare Part D claims for 455 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.

  1. Jason Yahwak2,209
  2. Specialty average1,425

Most prescribed

  1. Trelegy Ellipta287 claims
  2. Prednisone263 claims
  3. Albuterol Sulfate Hfa227 claims
  4. Breztri Aerosphere221 claims
  5. Anoro Ellipta164 claims
  6. Azithromycin122 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.

Industry payments in 2024: $133.75

1 payment: food and beverage; the largest payer was Intuitive Surgical, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jason Yahwak$133.75
  2. Specialty average$5,159.88

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Chest Medicine Associates PASouth Portland, ME
  2. Mercy HospitalPortland, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jason A. Yahwak among 83 pulmonary disease physician records in Maine

Jason A. Yahwak, M.D. is one of 83 pulmonary disease physician records with a practice address in Maine. 75% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 37% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1998 · median 2002 among the 56 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 pulmonary disease physician records list a practice address in South Portland

They are 24 of the 1,143 NPPES records with a practice address in South Portland, and 83 pulmonary disease physician records in Maine.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Peter Bates, M.D.South Portland, ME 041061649203373
  2. George Bokinsky, M.D.South Portland, ME 041061568574853
  3. Jonathan Evans, M.D.South Portland, ME 041061568460640
  4. Stephen Gorman, D.O.South Portland, ME 041061811931876
  5. M. Knauft, M.D.South Portland, ME 041061316040538
  6. Stephen Mette, M.D.South Portland, ME 041061134231418
  7. Luke Pluto, M.D.South Portland, ME 041061851350854
  8. Richard Riker, M.D.South Portland, ME 041061972615235

Common questions

What is Jason A. Yahwak, M.D.'s NPI number?

Jason A. Yahwak, M.D.'s National Provider Identifier (NPI) is 1598868747, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jason A. Yahwak, M.D. located?

The NPPES record lists a practice address at 100 Foden Road, South Portland, ME, 04106. Phone: (207) 828-1122. Providers update this record themselves, so call before visiting.

How can I verify Jason A. Yahwak, M.D.'s license?

NPPES lists Maine license number 15752, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jason A. Yahwak, M.D. prescribe under Medicare Part D?

In 2024, Jason A. Yahwak, M.D. had 2,209 Medicare Part D claims for 455 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.

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.