Ioan Cosma, MD
Nephrology Physician · Portland, ME
Ioan Cosma, MD is a nephrology physician with a practice address in Portland, Maine, and NPI 1356540454, issued on Jul 17, 2007. Check the license (Maine MD18449, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ioan Cosma
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- MD18449 ME
Self-reported in NPPES; status is on the state search - Practice location
- 1600B Congress St, Portland, ME 04102
- Phone
- (207) 774-5222
- Enumerated
- Jul 17, 2007
- Record last updated
- Feb 5, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (207) 761-4433
- Medicare enrollment
- Enrolled (PECOS I20100827000732); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 50 in Maine → Look up another NPI →
Also registered at 1600B Congress St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Akom, M.D.Nephrology Physician1508827585
- Patricia Cantlin, DONephrology Physician1275533994
- Stephen CihockiAcute Care Nurse Practitioner1407455793
- Gary Diperna, DONephrology Physician1649567579
- Eric Holmes, PA-CNephrology Physician1740540293
- Mahendra Mangray, MDNephrology Physician1801074919
Verify Ioan Cosma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD18449Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average nephrology physician in 2024
567 Medicare Part D claims for 142 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Lisinopril71 claims
- Amlodipine Besylate39 claims
- Losartan Potassium37 claims
- Calcitriol30 claims
- Furosemide26 claims
- Jardiance22 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $174.77
1 payment: food and beverage; the largest payer was Argon Medical Devices, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- MainehealthBiddeford, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ioan Cosma among 50 nephrology physician records in Maine
Ioan Cosma, MD is one of 50 nephrology physician records with a practice address in Maine. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 40% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2003 · median 2001 among the 38 with a school on file
- Record last updated2014 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Maine
There are 50 nephrology physician records in Maine.
All 50 in Maine → Every provider in Portland → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Michael Akom, M.D.Portland, ME 041021508827585
- Carl Blond, M.D.Portland, ME 041021174507776
- Patricia Cantlin, DOPortland, ME 041021275533994
- Gary Diperna, DOPortland, ME 041021649567579
- Robert Isom, M.D.Portland, ME 041021356428072
- Mahendra Mangray, MDPortland, ME 041021801074919
- Paul Parker, MDPortland, ME 041021649278029
- Mark Parker, M.D.Portland, ME 041021770583346
Common questions
What is Ioan Cosma, MD's NPI number?
Ioan Cosma, MD's National Provider Identifier (NPI) is 1356540454, issued on Jul 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ioan Cosma, MD located?
The NPPES record lists a practice address at 1600B Congress St, Portland, ME, 04102. Phone: (207) 774-5222. Providers update this record themselves, so call before visiting.
How can I verify Ioan Cosma, MD's license?
NPPES lists Maine license number MD18449, 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 Ioan Cosma, MD prescribe under Medicare Part D?
In 2024, Ioan Cosma, MD had 567 Medicare Part D claims for 142 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Ioan Cosma, 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.