1. Home
  2. Directory
  3. New Hampshire
  4. Portsmouth
  5. Obstetrics Gynecology
  6. NPI Profile

MARK A CHAG M.D.
NPI 1336179878
Obstetrics & Gynecology in Portsmouth, NH

Active since July 03, 2006
HARBOUR WOMEN'S HEALTH, 155 GRIFFIN ROAD, PORTSMOUTH, NH 03801(603) 431-6011(603) 431-6227 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mark A Chag M.d. NPPES

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

MARK A CHAG M.D. (NPI 1336179878) is an individual obstetrics & gynecology provider in Portsmouth, New Hampshire, licensed in New Hampshire (6723) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1336179878
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameMARK A CHAGCredential: M.D.
Location AddressHARBOUR WOMEN'S HEALTH, 155 GRIFFIN ROADPortsmouth, NH 03801-4125
Mailing Address404 Middle StPortsmouth, NH 03801-5016 · (603) 436-7344 · Fax (603) 431-6227
Phone(603) 431-6011
Fax(603) 431-6227
Sole ProprietorNo
Enumeration DateJuly 3, 2006
Last NPPES UpdateMarch 7, 2023
✔ NPI 1336179878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in NH · 6723
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
HARBOUR WOMEN'S HEALTH, Portsmouth, NH 03801
Open in Google Maps ↗

Other Identifiers 2

Other10904399Caqh
Medicaid82163118NH

Other Providers at the Same Location NPPES 5

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

CATHERINE A MCLAUGHLIN-HILLS CNM, MSN
Advanced Practice Midwife
HARBOUR WOMEN'S HEALTH, 155 GRIFFIN ROAD
PORTSMOUTH, NH 03801
Rockingham County (603) 431-6011
PATRICIA M YAUCH ARNP
Nurse Practitioner (Obstetrics & Gynecology)
HARBOUR WOMEN'S HEALTH, 155 GRIFFIN ROAD
PORTSMOUTH, NH 03801
Rockingham County (603) 431-6011
ALBERT J LANTINEN JR. M.D.
Obstetrics & Gynecology
HARBOUR WOMEN'S HEALTH, 155 GRIFFIN STREET
PORTSMOUTH, NH 03801
Rockingham County (603) 431-6011
JOANN DEMUTH CNM
Advanced Practice Midwife
HARBOUR WOMEN'S HEALTH, 155 GRIFFIN ROAD
PORTSMOUTH, NH 03801
Rockingham County (603) 431-6011
HARBOUR WOMENS HEALTH PLLC
Obstetrics & Gynecology
HARBOUR WOMEN'S HEALTH, 155 GRIFFIN ROAD
PORTSMOUTH, NH 03801
Rockingham County (603) 431-6011

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 Mark Chag's NPI number?

The NPI number for Mark Chag is 1336179878. It was assigned to this individual provider in the NPPES registry on July 3, 2006.

Where is Mark Chag located?

Mark Chag practices at Harbour Women's Health 155 Griffin Road, Portsmouth, NH 03801. The listed phone number is (603) 431-6011.

What is Mark Chag's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

When was this NPI record last updated?

The NPPES record for Mark Chag was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.