DR. MERCEDES MARTINEZ MD
NPI 1316992522
Pediatrics - Pediatric Transplant Hepatology in New York, NY
About Dr. Mercedes Martinez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MERCEDES MARTINEZ MD (NPI 1316992522) is an individual pediatric transplant hepatology provider in New York, New York, licensed in New York (234225) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
Dr. Mercedes Martinez Md 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
3Medicare enrollment records show Mercedes Martinez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1982993184 (New York)
- 3,922 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 124 clinicians in this Medicare group
Englewood, NJ 07631
- Reassigned Medicare billing, New Jersey enrollment
- 149 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10032
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 Mercedes Martinez's NPI number?
The NPI number for Mercedes Martinez is 1316992522. It was assigned to this individual provider in the NPPES registry on May 24, 2006.
Where is Mercedes Martinez located?
Mercedes Martinez practices at 3959 Broadway Fl 7, New York, NY 10032. The listed phone number is (212) 305-3000.
What is Mercedes Martinez's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Transplant Hepatology, with taxonomy code 2080T0004X.
Is Mercedes Martinez enrolled in Medicare?
Yes. Mercedes Martinez 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 Mercedes Martinez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mercedes Martinez reassigns Medicare benefits to 3 organizations: Trustees Of Columbia University In The City Of New York (New York, NY), The Trustees Of Columbia University In The City Of New York (New York, NY) and Columbia Doctors Of New Jersey, P. C. (Englewood, NJ). 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 Mercedes Martinez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mercedes Martinez affiliated with any hospitals?
According to CMS data, Mercedes Martinez is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Mercedes Martinez was last updated on April 26, 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.
# Dr. Mercedes Martinez, MD · NPI 1316992522
Pediatric Transplant Hepatology physician in New York, New York. Individual provider, active in the CMS NPPES registry since May 24, 2006.
## Identity
- **NPI:** 1316992522 (Entity type: Individual)
- **Enumerated:** May 24, 2006
- **Primary specialty:** Pediatrics - Pediatric Transplant Hepatology · taxonomy 2080T0004X
- **State license:** 234225 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 3959 BROADWAY FL 7, New York, NY 10032-1559
- **Phone:** (212) 305-3000 · **Fax:** (212) 305-4343
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Trustees Of Columbia University In The City Of New York (NPI 1477068971, New York, NY); The Trustees Of Columbia University In The City Of New York (NPI 1265598783, New York, NY); Columbia Doctors Of New Jersey, P. C. (NPI 1952224370, Englewood, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1988
## Record status
- **NPPES last updated:** April 26, 2018
- **Other identifiers:** Medicaid 02769166 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1316992522) · Data from the CMS NPPES public registry.