Paul A. Parker, MD
Nephrology Physician · Portland, ME
Paul A. Parker, MD is a nephrology physician with a practice address in Portland, Maine, and NPI 1649278029, issued on Jul 11, 2005. Check the license (Maine 9867, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Paul A. Parker
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 9867 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 11, 2005
- Record last updated
- Mar 22, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (207) 761-4433
- Medicaid ID
- 306590099 ME
- Medicare enrollment
- Enrolled (PECOS I20050630000784); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 1978
- Telehealth
- Offers telehealth (CMS)
- 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
- Ioan Cosma, MDNephrology Physician1356540454
- Gary Diperna, DONephrology Physician1649567579
- Eric Holmes, PA-CNephrology Physician1740540293
Verify Paul A. Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 9867Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average nephrology physician in 2024
415 Medicare Part D claims for 69 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Sevelamer Carbonate55 claims
- Mupirocin40 claims
- Lactated Ringers34 claims
- Cephalexin26 claims
- Losartan Potassium17 claims
- Amlodipine Besylate16 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).
Bills Medicare through one group practice
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Paul A. Parker among 50 nephrology physician records in Maine
Paul A. Parker, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 72% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1978 · median 2001 among the 38 with a school on file
- Record last updated2016 · 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
- Ioan Cosma, MDPortland, ME 041021356540454
- Gary Diperna, DOPortland, ME 041021649567579
- Robert Isom, M.D.Portland, ME 041021356428072
- Mahendra Mangray, MDPortland, ME 041021801074919
- Mark Parker, M.D.Portland, ME 041021770583346
Common questions
What is Paul A. Parker, MD's NPI number?
Paul A. Parker, MD's National Provider Identifier (NPI) is 1649278029, issued on Jul 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Paul A. Parker, 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 Paul A. Parker, MD's license?
NPPES lists Maine license number 9867, 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 Paul A. Parker, MD prescribe under Medicare Part D?
In 2024, Paul A. Parker, MD had 415 Medicare Part D claims for 69 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Paul A. Parker, 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.