Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Tanya M Martinez-Fernandez, M.D.

Pediatric Pulmonology Physician in Dallas, TX · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1275514135

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Registry record

Entity type Individual (Type 1)

Name Dr. Tanya M Martinez-Fernandez

Credential M.D.

Sex Female

Practice address 1935 Medical District Dr, Dallas, TX, 75235

Phone (214) 456-4630

Enumeration date Nov 8, 2005

Last updated in NPPES Dec 28, 2011

Taxonomy & licenses

2080P0214X Pediatric Pulmonology Physician Allopathic & Osteopathic Physicians · License ME90300 (FL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
270043300	Medicaid	FL	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Tanya Martinez-Fernandez practice?

The practice location on file with NPPES is in Dallas, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Tanya Martinez-Fernandez?

The National Provider Identifier (NPI) for Tanya Martinez-Fernandez is 1275514135, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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James Baker Psychiatry Physician · Dallas, TX NPI 1487650156 Jessica Lloyd Pediatric Critical Care Medicine Physician · Dallas, TX NPI 1639177181 Joe Cavender Pediatric Nurse Practitioner · Dallas, TX NPI 1851392609 Phuong Luu Physician Assistant · Dallas, TX NPI 1649257353 Ian Schneider Physician Assistant · Dallas, TX NPI 1710958954 Barbara Gaines Pediatric Surgery Physician · Dallas, TX NPI 1790758837 James Amatruda Pediatric Hematology & Oncology Physician · Dallas, TX NPI 1689643140 Michael Dowling Neurology with Special Qualifications in Child Neurology Physician · Dallas, TX NPI 1396706479

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-28.