Donna Lynne Greenwood, MD
Internal Medicine Physician · Portland, ME
Donna Lynne Greenwood, MD is an internal medicine physician with a practice address in Portland, Maine, and NPI 1922259324, issued on Oct 2, 2008. Check the license (Maine 013240, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Donna Lynne Greenwood
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 013240 ME
Self-reported in NPPES; status is on the state search - Practice location
- 43 Baxter Blvd, Portland, ME 04101
- Phone
- (207) 879-3040
- Enumerated
- Oct 2, 2008
- Record last updated
- Sep 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (207) 879-3947
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 597 in Maine → Look up another NPI →
Also registered at 43 Baxter Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Donna Lynne Greenwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 013240Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,046 Medicare Part D claims for 400 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Atorvastatin Calcium231 claims
- Amlodipine Besylate155 claims
- Levothyroxine Sodium94 claims
- Omeprazole85 claims
- Losartan Potassium84 claims
- Lisinopril83 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.
Donna Lynne Greenwood among 597 internal medicine physician records in Maine
Donna Lynne Greenwood, MD is one of 597 internal medicine physician records with a practice address in Maine. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 61% of them.
- NPI issued2008 · 61% of these records are older, 35% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2011 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
145 internal medicine physician records list a practice address in Portland
They are 145 of the 6,022 NPPES records with a practice address in Portland, and 597 internal medicine physician records in Maine.
All 597 in Maine → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joel Botler, MDPortland, ME 041011891764577
- Charles Cathcart, MDPortland, ME 041011861461535
- Wendy Cathcart, MDPortland, ME 041011295704971
- Thomas Claffey, MDPortland, ME 041011487623153
- Steven Dobieski, MDPortland, ME 041011942279617
- John Erickson, MDPortland, ME 041011043289713
- Debra Fuchs Ertman, MDPortland, ME 041011730158403
- Phyllidia Ku-Ruth, MDPortland, ME 041011497724108
Common questions
What is Donna Lynne Greenwood, MD's NPI number?
Donna Lynne Greenwood, MD's National Provider Identifier (NPI) is 1922259324, issued on Oct 2, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Donna Lynne Greenwood, MD located?
The NPPES record lists a practice address at 43 Baxter Blvd, Portland, ME, 04101. Phone: (207) 879-3040. Providers update this record themselves, so call before visiting.
How can I verify Donna Lynne Greenwood, MD's license?
NPPES lists Maine license number 013240, 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 Donna Lynne Greenwood, MD prescribe under Medicare Part D?
In 2024, Donna Lynne Greenwood, MD had 2,046 Medicare Part D claims for 400 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.