Heather Ann Kleczewski, MD

Primary specialty

Pediatric Emergency Medicine (Pediatrics) PhysicianTaxonomy code 2080P0204X

License

N6426 Issued in TX

Practice address

333 N Santa Rosa
San Antonio, TX 78207-3108

Phone

(210) 704-3030

NPI assigned

Apr 18, 2007

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Baylor College of Medicine

  • Pediatrics Physician
  • San Antonio, TX
  • NPI 1285079764
  Medicare reassignment NPD
• Bexar Emergency Physicians, PLLC

  • Emergency Medicine Physician
  • San Antonio, TX
  • NPI 1548034994
  Medicare reassignment NPD
• University of Texas Southwestern Medical Center at Dallas

  • Anesthesiology Physician
  • Dallas, TX
  • NPI 1942270566
  Medicare reassignment NPD
• Victoria Emergency Partners LLC

  • Emergency Medicine Physician
  • Gonzales, TX
  • NPI 1164770996
  Medicare reassignment NPD
• The University of Texas Southwestern Medical Center at Dallas

  • Clinical Medical Laboratory
  • Dallas, TX
  • NPI 1396832713
  NPD
• University of Texas Southwestern Medical Center at Dallas

  • Pediatrics Physician
  • Dallas, TX
  • NPI 1750351375
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1176854400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773619200000",
    "number": "1679799423",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "333 N SANTA ROSA ST",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752845347",
            "telephone_number": "210-704-4581"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "333 N SANTA ROSA",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782073108",
            "telephone_number": "210-704-3030"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5323 Harry Hines Blvd",
            "address_purpose": "LOCATION",
            "city": "Dallas",
            "state": "TX",
            "postal_code": "753907201",
            "country_code": "US",
            "telephone_number": "214-456-0771",
            "fax_number": "214-456-8132",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1434 E Sonterra Blvd Ste 100",
            "address_purpose": "LOCATION",
            "city": "San Antonio",
            "state": "TX",
            "postal_code": "782584971",
            "country_code": "US",
            "telephone_number": "210-704-4708",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KLECZEWSKI",
        "first_name": "HEATHER",
        "middle_name": "ANN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-04-18",
        "last_updated": "2026-03-16",
        "certification_date": "2026-03-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0204X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Emergency Medicine",
            "state": "TX",
            "license": "N6426",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Theresa Klasing, SLP
• Mary Josie Klass, LCSW
• Dudley Iles Klatt II, PHARM.D.
• Alyssa Klaus
• Duane Klaus, MD
• Adi Klein, MD
• Andrea Elaine Klein, MD
• Ashley Klein, PT, DPT
• Chad Matthew Klein, D.C.
• Christopher Michael Klein, RPH

• Pediatric Emergency Medicine (Pediatrics) Physician in San Antonio, TX
• Providers in San Antonio, TX by specialty
• Pediatric Emergency Medicine (Pediatrics) Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.