Douglas Gardner Ertman, M.D.
Family Medicine Physician · Yarmouth, ME
Douglas Gardner Ertman, M.D. is a family medicine physician with a practice address in Yarmouth, Maine, and NPI 1043253636, issued on Jun 13, 2006. Check the license (Maine 014987, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Douglas Gardner Ertman
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 014987 ME
Self-reported in NPPES; status is on the state search - Practice location
- 385 Route 1, Yarmouth, ME 04096
- Phone
- (207) 535-1200
- Enumerated
- Jun 13, 2006
- Record last updated
- Jan 25, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (207) 535-1249
- Medicare enrollment
- Enrolled (PECOS I20040129000739); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,172 in Maine → Look up another NPI →
Also registered at 385 Route 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Norman Guay, D.O.Family Medicine Physician1447203310
- Carolyn Millhouse, FNPFamily Nurse Practitioner1518185917
- Jodi Newcombe, M.D.Family Medicine Physician1114339611
- Erin Piontek, M.D.Family Medicine Physician1780754457
- Courtney Schneider, PMHNPPsychiatric/Mental Health Nurse Practitioner1235837311
- Lynne Werner, MDInternal Medicine Physician1700974763
Verify Douglas Gardner Ertman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 014987Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
312 Medicare Part D claims for 265 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Prednisone40 claims
- Cephalexin34 claims
- Doxycycline Monohydrate33 claims
- Azithromycin24 claims
- Nitrofurantoin Mono-Macro18 claims
- Amoxicillin16 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.
Bills Medicare through one group practice
- Mercy HospitalGorham, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Douglas Gardner Ertman among 1,172 family medicine physician records in Maine
Douglas Gardner Ertman, M.D. is one of 1,172 family medicine physician records with a practice address in Maine. 76% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 52% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1989 · median 2008 among the 668 with a school on file
- Record last updated2012 · 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 207Q00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Yarmouth
They are 23 of the 288 NPPES records with a practice address in Yarmouth, and 1,172 family medicine physician records in Maine.
All 1,172 in Maine → Every provider in Yarmouth → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Christine Gates, MDYarmouth, ME 040961639138894
- Norman Guay, D.O.Yarmouth, ME 040961447203310
- James Haller, MDYarmouth, ME 040961235108937
- Wesley Johnson, MDYarmouth, ME 040961841259967
- Stephen Martin, MDYarmouth, ME 040961740249861
- Peter O'Donnell, M.D.Yarmouth, ME 040961982649943
- Shashi Panozzo, MDYarmouth, ME 040961255301701
- Jeffrey Patch, MDYarmouth, ME 040961720067317
Common questions
What is Douglas Gardner Ertman, M.D.'s NPI number?
Douglas Gardner Ertman, M.D.'s National Provider Identifier (NPI) is 1043253636, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Gardner Ertman, M.D. located?
The NPPES record lists a practice address at 385 Route 1, Yarmouth, ME, 04096. Phone: (207) 535-1200. Providers update this record themselves, so call before visiting.
How can I verify Douglas Gardner Ertman, M.D.'s license?
NPPES lists Maine license number 014987, 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 Douglas Gardner Ertman, M.D. prescribe under Medicare Part D?
In 2024, Douglas Gardner Ertman, M.D. had 312 Medicare Part D claims for 265 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.