1. Home
  2. Directory
  3. Maine
  4. Yarmouth
  5. Family Medicine
  6. NPI Profile

DOUGLAS GARDNER ERTMAN M.D.
NPI 1043253636
Family Medicine in Yarmouth, ME

Active since June 13, 2006PECOS EnrolledAccepts Medicare Assignment
385 ROUTE 1, YARMOUTH, ME 04096(207) 535-1200(207) 535-1249 Get Directions Write a Review

NPPES record last updated: January 25, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Douglas Gardner Ertman M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DOUGLAS GARDNER ERTMAN M.D. (NPI 1043253636) is an individual family medicine provider in Yarmouth, Maine, licensed in Maine (014987) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Northern Light Health, and is a graduate of Indiana University School Of Medicine (1989).

NPPES Registry Identity

NPI1043253636
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDOUGLAS GARDNER ERTMANCredential: M.D.
Location Address385 ROUTE 1Yarmouth, ME 04096-6729
Mailing Address144 State StPortland, ME 04101-3776 · (207) 879-3000
Phone(207) 535-1200
Fax(207) 535-1249
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 1989
Enumeration DateJune 13, 2006
Last NPPES UpdateJanuary 25, 2012
✔ NPI 1043253636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in ME · 014987
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
385 ROUTE 1, Yarmouth, ME 04096
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINF39176ME
Medicare PINMM7819ME

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Douglas Gardner Ertman M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4587567326
PECOS Enrollment IDI20040129000739
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Douglas Ertman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Hospital
11 mi
General Acute Care Hospital
195 FORE RIVER PKWY, SUITE 300
Portland, ME 04102
  • Reassigned Medicare billing, Maine enrollment
  • 322 clinicians in this Medicare group
NPI 1427313048 (207) 879-3601
Central Maine Medical Center
21 mi
General Acute Care Hospital
300 MAIN ST
Lewiston, ME 04240
  • Reassigned Medicare billing, Maine enrollment
  • 920 clinicians in this Medicare group
NPI 1689653487 (207) 795-5646

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northern Light Health

Acute Care Hospitals · Portland, ME
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number200008
Location144 State StreetPortland, ME 04101 · Cumberland County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04096 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.72 typical visit price
range $56.28 – $169.96
Typical copayment $21.68 (range $14.07 – $42.49)
Most-billed visit code 99203
Established Patient
$99.18 typical visit price
range $18.22 – $138.92
Typical copayment $24.79 (range $4.55 – $34.73)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JODI A NEWCOMBE M.D.
Family Medicine
385 ROUTE 1
YARMOUTH, ME 04096
Cumberland County (207) 535-1200
MERCY HOSPITAL
General Acute Care Hospital
385 ROUTE 1
YARMOUTH, ME 04096
Cumberland County (207) 535-1200
COURTNEY SCHNEIDER PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
385 ROUTE 1
YARMOUTH, ME 04096
Cumberland County (207) 535-1200
DR. NORMAN J GUAY III D.O.
Family Medicine
385 ROUTE 1
YARMOUTH, ME 04096
Cumberland County (207) 535-1200
CAROLYN SUE MILLHOUSE FNP
Nurse Practitioner (Family)
385 ROUTE 1
YARMOUTH, ME 04096
Cumberland County (207) 535-1200
LYNNE WERNER MD
Internal Medicine
385 ROUTE 1
YARMOUTH, ME 04096
Cumberland County (207) 535-1200
ERIN E. PIONTEK M.D.
Family Medicine
385 ROUTE 1
YARMOUTH, ME 04096
Cumberland County (207) 535-1200

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Douglas Ertman's NPI number?

The NPI number for Douglas Ertman is 1043253636. It was assigned to this individual provider in the NPPES registry on June 13, 2006.

Where is Douglas Ertman located?

Douglas Ertman practices at 385 Route 1, Yarmouth, ME 04096. The listed phone number is (207) 535-1200.

What is Douglas Ertman's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Douglas Ertman enrolled in Medicare?

Yes. Douglas Ertman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Douglas Ertman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Ertman reassigns Medicare benefits to 2 organizations: Mercy Hospital (Portland, ME) and Central Maine Medical Center (Lewiston, ME). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Douglas Ertman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Douglas Ertman accept?

Health plans from Anthem Blue Cross and Blue Shield list Douglas Ertman as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Douglas Ertman affiliated with any hospitals?

According to CMS data, Douglas Ertman is affiliated with Northern Light Health.

When was this NPI record last updated?

The NPPES record for Douglas Ertman was last updated on January 25, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.