Registry data as of Aug 27, 2026

Melanie Greenan, MD

Nephrology Physician · Yarmouth Port, MA

Melanie Greenan, MD is a nephrology physician with a practice address in Yarmouth Port, Massachusetts, and NPI 1790783348, issued on Jul 8, 2005. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1790783348
Name
Melanie Greenan
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
Practice location
251 Willow St, Yarmouth Port, MA 02675
Phone
(508) 778-0375
Enumerated
Jul 8, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 251 Willow St

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

  1. James Reimer, MDInternal Medicine Physician1831140599

Verify Melanie Greenan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck 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 Massachusetts 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.

27% fewer Medicare Part D claims than the average nephrology physician in 2024

1,105 Medicare Part D claims for 256 beneficiaries, against an average of 1,511 among the 8,473 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Melanie Greenan1,105
  2. Specialty average1,511

Most prescribed

  1. Farxiga174 claims
  2. Sevelamer Carbonate129 claims
  3. Furosemide108 claims
  4. Calcitriol67 claims
  5. Amlodipine Besylate65 claims
  6. Lisinopril61 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: $106.47

7 payments, mostly education; the largest payer was Travere Therapeutics, Inc.. The 6,365 providers of this specialty with any payment received $3,068.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Melanie Greenan$106.47
  2. Specialty average$3,068.36

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

One hospital or facility affiliation

  1. NE Nephrology Home Care AssociatesNorfolk, MA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Nephrology Physician providers in Massachusetts

There are 314 nephrology physician records in Massachusetts.

Other nephrology physician records in Massachusetts

  1. Amtul Aala, MDBoston, MA1174946347
  2. Reza Abdi, MDBoston, MA1356359368
  3. Vivian AbernethyBoston, MA1710960232
  4. Rekha Abichandani, M.D.Cambridge, MA1912033598
  5. Konstantin Abramov, M.D.Worcester, MA1992854707
  6. Krishna Agarwal, M.B.B.S.Springfield, MA1477916120
  7. Ahsan Alam, M.D.Boston, MA1598885980
  8. David Albert, M.D.Pittsfield, MA1386692531
  9. Saif Alenizi, M.D., M.P.H.Boston, MA1255680997
  10. Howard Alfred, M.D.Worcester, MA1942283627

Common questions

What is Melanie Greenan, MD's NPI number?

Melanie Greenan, MD's National Provider Identifier (NPI) is 1790783348, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Melanie Greenan, MD located?

The NPPES record lists a practice address at 251 Willow St, Yarmouth Port, MA, 02675. Phone: (508) 778-0375. Providers update this record themselves, so call before visiting.

How can I verify Melanie Greenan, MD's license?

Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Melanie Greenan, MD prescribe under Medicare Part D?

In 2024, Melanie Greenan, MD had 1,105 Medicare Part D claims for 256 beneficiaries; the average among nephrology physician prescribers was 1,511. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.