MARTIN DAVID KELTZ M.D.
NPI 1750381877
Obstetrics & Gynecology - Reproductive Endocrinology in Purchase, NY
About Martin David Keltz M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARTIN DAVID KELTZ M.D. (NPI 1750381877) is an individual reproductive endocrinology provider in Purchase, New York, licensed in New York (185223-1) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of New York University School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Martin David Keltz 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.
Medicare Billing Reassignments
2Medicare enrollment records show Martin Keltz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rye Brook, NY 10573
- Reassigned Medicare billing, Connecticut and New York enrollments
- 186 clinicians in this Medicare group
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10577 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PURCHASE, NY 10577
PURCHASE, NY 10577
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 Martin Keltz's NPI number?
The NPI number for Martin Keltz is 1750381877. It was assigned to this individual provider in the NPPES registry on July 29, 2005.
Where is Martin Keltz located?
Martin Keltz practices at 3030 Westchester Ave, Purchase, NY 10577. The listed phone number is (914) 848-8800.
What is Martin Keltz's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Reproductive Endocrinology, with taxonomy code 207VE0102X.
Is Martin Keltz enrolled in Medicare?
Yes. Martin Keltz 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 Martin Keltz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martin Keltz reassigns Medicare benefits to 2 organizations: Westchester Medical Group, P.C. (Rye Brook, NY) and Westchester Medical Center Advanced Physician Services PC (Valhalla, NY). 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 Martin Keltz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Martin Keltz was last updated on December 17, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Martin David Keltz, M.D. · NPI 1750381877
Reproductive Endocrinology physician in Purchase, New York. Individual provider, active in the CMS NPPES registry since July 29, 2005.
## Identity
- **NPI:** 1750381877 (Entity type: Individual)
- **Enumerated:** July 29, 2005
- **Primary specialty:** Obstetrics & Gynecology - Reproductive Endocrinology · taxonomy 207VE0102X
- **State license:** 185223-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 3030 WESTCHESTER AVE, Purchase, NY 10577
- **Phone:** (914) 848-8800 · **Fax:** (914) 848-8800
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Westchester Medical Group, P.C. (NPI 1881653822, Rye Brook, NY); Westchester Medical Center Advanced Physician Services PC (NPI 1740687458, Valhalla, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York University School Of Medicine, class of 1989
## Record status
- **NPPES last updated:** December 17, 2014
- **Other identifiers:** Medicare UPIN F57951; Medicaid 01571333 (NY); Medicare ID-Type Unspecified 18G071 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1750381877) · Data from the CMS NPPES public registry.