Weston Lawrence Niermeyer, MD

Primary specialty

Otolaryngology PhysicianTaxonomy code 207Y00000X

License

MD495777 Issued in PA

Practice address

3509 N Broad St
Philadelphia, PA 19140-4105

Phone

(844) 570-1767

NPI assigned

Apr 3, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

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

Specialty

Otolaryngology

Education

Ohio State University College of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

UCSF Medical Group Business ServicesGroup PAC ID 3779497870, 1,533 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• UCSF Medical Center Hospital, San Francisco, CA, CCN 050454

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wniermeyer433088@direct-ucsfmedicalcenter.org

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.

• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104

  Otolaryngology

  Medicare reassignment Care Compare group NPD
• City & County of San Francisco

  • Clinical Medical Laboratory
  • San Francisco, CA
  • NPI 1982737524
  Medicare reassignment NPD
• University of California San Francisco

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment NPD
• University of California SFGH Medical Group

  • Otolaryngology Physician
  • San Francisco, CA
  • NPI 1154396208
  Medicare reassignment NPD
• City & County of San Francisco

  • Community Health/Public Health Clinical Nurse Specialist
  • San Francisco, CA
  • NPI 1609041060
  NPD
• City and County of San Francisco

  • Methadone Clinic
  • San Francisco, CA
  • NPI 1578787925
  NPD
• UCSF Medical Group Business Services

  • Health Service Clinic/Center
  • San Francisco, CA
  • NPI 1194115246
  NPD
• University of California San Francisco

  • Surgery Physician
  • San Francisco, CA
  • NPI 1346329380
  NPD
• University of California San Francisco

  • Community/Retail Pharmacy
  • San Francisco, CA
  • NPI 1659141711
  NPD
• University of California SFGH Medical Group

  • Vascular Surgery Physician
  • San Francisco, CA
  • NPI 1033913959
  NPD
• University of California San Francisco Medical Center

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1144325440
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• University of California, San Francisco

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1689772592
  Care Compare affiliation

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

{
    "created_epoch": "1585872000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1831728609",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1825 4TH ST FL 5",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432350",
            "telephone_number": "415-885-7528"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3509 N BROAD ST",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191404105",
            "telephone_number": "844-570-1767"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2150 Pennsylvania Ave NW",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200373201",
            "country_code": "US",
            "telephone_number": "202-741-3000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1825 4th St Fl 5",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941432350",
            "country_code": "US",
            "telephone_number": "415-885-7528",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NIERMEYER",
        "first_name": "WESTON",
        "middle_name": "LAWRENCE",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-03",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "PA",
            "license": "MD495777",
            "primary": true
        },
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "CA",
            "license": "A202388",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Natasha M Nielsen
• Bret Nielson, LCSW
• Amanda Lynn Niemcewicz, PA-C
• Yanina Niemiec
• Eliot Nierman, MD
• Jorge E Nieto, R.D.H., D.M.D.
• Carmen Nieves-Merced, PT
• Cynthia Marie Nieves, CRNP, FNP-BC
• Edgardo Nieves, M.S.
• Melissa Nieves, M.D.

• Otolaryngology Physician in Philadelphia, PA
• Providers in Philadelphia, PA by specialty
• Otolaryngology Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.