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GRIER H MERWIN M.D.
NPI 1255378204
Family Medicine in Dorchester, MA

Active since May 31, 2006PECOS EnrolledAccepts Medicare Assignment
500 COLUMBIA ROAD, UPHAM'S CORNER HEALTH CTR, DORCHESTER, MA 02125(617) 287-8000 Get Directions Write a Review

NPPES record last updated: March 22, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Grier H Merwin M.d. NPPES

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

GRIER H MERWIN M.D. (NPI 1255378204) is an individual family medicine provider in Dorchester, Massachusetts, licensed in Massachusetts (35314) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and is a graduate of Columbia University College Of Physicians And Surgeons (1967).

NPPES Registry Identity

NPI1255378204
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameGRIER H MERWINCredential: M.D.
Location Address500 COLUMBIA ROAD, UPHAM'S CORNER HEALTH CTRDorchester, MA 02125
Mailing Address415 Columbia RdDorchester, MA 02125-2424 · (617) 287-8000
Phone(617) 287-8000
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 1967
Enumeration DateMay 31, 2006
Last NPPES UpdateMarch 22, 2018
✔ NPI 1255378204 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MA · 35314
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.
500 COLUMBIA ROAD, Dorchester, MA 02125
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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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Grier H Merwin 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 ID7113968405
PECOS Enrollment IDI20050517000670
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.

Hospital Affiliations CMS Care Compare

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

Boston Medical Center

Acute Care Hospitals · Boston, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220031
Location1 Boston Medical Center PlaceBoston, MA 02118 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02125 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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 2

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

ANDREA DANDRIDGE FNP. MPH
Nurse Practitioner (Family)
500 COLUMBIA ROAD, UPHAMS CORNER HEALTH CENTER
DORCHESTER, MA 02125
Suffolk County (617) 287-8000
UPHAMS CORNER HEALTH COMMITTEE INC
Home Health
500 COLUMBIA ROAD
DORCHESTER, MA 02125
Suffolk County (617) 825-9206

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 Grier Merwin's NPI number?

The NPI number for Grier Merwin is 1255378204. It was assigned to this individual provider in the NPPES registry on May 31, 2006.

Where is Grier Merwin located?

Grier Merwin practices at 500 Columbia Road Upham's Corner Health Ctr, Dorchester, MA 02125. The listed phone number is (617) 287-8000.

What is Grier Merwin's specialty?

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

Is Grier Merwin enrolled in Medicare?

Yes. Grier Merwin 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.

What insurance does Grier Merwin accept?

Health plans from Anthem Blue Cross and Blue Shield list Grier Merwin 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 Grier Merwin affiliated with any hospitals?

According to CMS data, Grier Merwin is affiliated with Boston Medical Center.

When was this NPI record last updated?

The NPPES record for Grier Merwin was last updated on March 22, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.