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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. DAVID SAUL DEIFIK MD
NPI 1205853199
Obstetrics & Gynecology in Nashua, NH

Active since July 16, 2006
22 PROSPECT ST, NASHUA, NH 03060(603) 883-1626(603) 816-1039 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 21, 2026, Dec 8, 2021 (2 updates tracked since 2021).

About Dr. David Saul Deifik Md NPPES

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

DR. DAVID SAUL DEIFIK MD (NPI 1205853199) is an individual obstetrics & gynecology provider in Nashua, New Hampshire, licensed in New Hampshire (6822) and active in the NPI registry since July 2006. He maintains a secondary practice location in Nashua.

NPPES Registry Identity

NPI1205853199
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. DAVID SAUL DEIFIKCredential: MD
Location Address22 PROSPECT STNashua, NH 03060-3924
Mailing Address22 Prospect StNashua, NH 03060-3924 · (603) 883-1626 · Fax (603) 816-1039
Phone(603) 883-1626
Fax(603) 816-1039
Sole ProprietorNo
Enumeration DateJuly 16, 2006
Last NPPES UpdateJuly 21, 20262 updates tracked since enumeration
NPPES CertifiedJuly 21, 2026
✔ NPI 1205853199 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 · 6822
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.
22 PROSPECT ST, Nashua, NH 03060
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Secondary Practice Location 1

Location 121 E Hollis StNashua, NH 03060-2928 · Phone (603) 577-4000 · Fax (603) 577-4318

Other Identifiers 1

Medicaid49NH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Harvard Pilgrim Health Care, WellSense Health Plan.Insurance ›

Other Providers at the Same Location NPPES 20

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

SAJAL NIROULA
Nurse Practitioner (Family)
22 PROSPECT ST
NASHUA, NH 03060
Hillsborough County (603) 883-1626
MELBA GUSSY C QUITAYEN PA
Physician Assistant (Medical)
22 PROSPECT ST
NASHUA, NH 03060
Hillsborough County (603) 883-1626
ALICIA AYMAT MORIN
Nurse Practitioner (Family)
22 PROSPECT ST
NASHUA, NH 03060
Hillsborough County (603) 883-1628
JANNA THOMPSON APRN
Nurse Practitioner (Family)
22 PROSPECT ST
NASHUA, NH 03060
Hillsborough County (603) 883-1626
SARAH LENNON WOOD APRN-C
Nurse Practitioner (Family)
22 PROSPECT ST
NASHUA, NH 03060
Hillsborough County (603) 883-1626
MS. MADISON JULIA RUSSO PA-C
Physician Assistant
22 PROSPECT ST
NASHUA, NH 03060
Hillsborough County (603) 883-1626
DR. JOHN D ANDERSON M.D.
Pediatrics
22 PROSPECT ST
NASHUA, NH 03060
Hillsborough County (603) 883-1626
SAMBORN B HOEY NP-C
Nurse Practitioner (Family)
22 PROSPECT ST
NASHUA, NH 03060
Hillsborough County (603) 883-1626

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 David Deifik's NPI number?

The NPI number for David Deifik is 1205853199. It was assigned to this individual provider in the NPPES registry on July 16, 2006.

Where is David Deifik located?

David Deifik practices at 22 Prospect St, Nashua, NH 03060. The listed phone number is (603) 883-1626.

What is David Deifik's specialty?

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

What insurance does David Deifik accept?

Health plans from Ambetter from NH Healthy Families, Harvard Pilgrim Health Care and WellSense Health Plan list David Deifik 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.

When was this NPI record last updated?

The NPPES record for David Deifik was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.