NPPES file of Aug 9, 2026

Heidi R. Wierman, MD

Geriatric Medicine (Internal Medicine) Physician · Portland, ME

Heidi R. Wierman, MD is a geriatric medicine (internal medicine) physician with a practice address in Portland, Maine, and NPI 1699868158, issued on Oct 2, 2006. Check the license (Maine MD15844, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699868158
Name
Heidi R. Wierman
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
MD15844 ME
Self-reported in NPPES; status is on the state search
Practice location
22 Bramhall St., Portland, ME 04102
Phone
(207) 662-2875
Enumerated
Oct 2, 2006
Record last updated
Aug 15, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(207) 662-6055
Medicaid IDs
431649899 ME
30208126 NH
Medicare enrollment
Enrolled (PECOS I20050121000334); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 1996
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 22 Bramhall St.

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

  1. Steven Hess, MDInternal Medicine Physician1427099498
  2. David Scotton, MDInternal Medicine Physician1932294352
  3. Adam Taft, MDAnesthesiology Physician1629500194

Verify Heidi R. Wierman 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 MD15844
    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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86% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

586 Medicare Part D claims for 125 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.

  1. Heidi Wierman586
  2. Specialty average4,246

Most prescribed

  1. Sertraline Hcl69 claims
  2. Donepezil Hcl57 claims
  3. Levothyroxine Sodium39 claims
  4. Escitalopram Oxalate27 claims
  5. Risperidone27 claims
  6. Amlodipine Besylate19 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 MIPS final score for 2023 (Medicare payment program): 98.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. MainehealthBiddeford, ME

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

Heidi R. Wierman among 27 geriatric medicine (internal medicine) physician records in Maine

Heidi R. Wierman, MD is one of 27 geriatric medicine (internal medicine) physician records with a practice address in Maine. 74% 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 0% of them.

  • NPI issued2006 · 0% of these records are older, 44% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1996 · median 2001 among the 16 with a school on file
  • Record last updated2012 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Maine

There are 27 geriatric medicine (internal medicine) physician records in Maine.

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Laurel Coleman, MDPortland, ME 041021376504878
  2. Sarah Hallen, M.D.Portland, ME 041021033221817
  3. Ann Magner, DOPortland, ME 041021205060225
  4. Annabelle Rae Norwood, M.D.Portland, ME 041021619256930
  5. Rachel Sluder, DOPortland, ME 041021508352410
  6. Mark Braun, MDScarborough, ME 040741851327936
  7. Angelea NannicelliScarborough, ME 040741366253098
  8. Karen Saylor, M.D.Freeport, ME 040321053593962

Common questions

What is Heidi R. Wierman, MD's NPI number?

Heidi R. Wierman, MD's National Provider Identifier (NPI) is 1699868158, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Heidi R. Wierman, MD located?

The NPPES record lists a practice address at 22 Bramhall St., Portland, ME, 04102. Phone: (207) 662-2875. Providers update this record themselves, so call before visiting.

How can I verify Heidi R. Wierman, MD's license?

NPPES lists Maine license number MD15844, 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 Heidi R. Wierman, MD prescribe under Medicare Part D?

In 2024, Heidi R. Wierman, MD had 586 Medicare Part D claims for 125 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.

What is Heidi R. Wierman, MD's MIPS final score?

The 2023 MIPS final score is 98.1 of 100. 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.