Zachary Chak

Primary specialty

ChiropractorTaxonomy code 111N00000X

License

36682 Issued in CA

Practice address

2633 San Bruno Ave
San Francisco, CA 94134-1597

Phone

(888) 500-1886

NPI assigned

Nov 11, 2025

Sex

Male

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 CA

Enrollment records 1

Specialty

Chiropractic

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

North East Medical ServicesGroup PAC ID 4284520529, 143 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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.

• North East Medical Services

  • Federally Qualified Health Center (FQHC)
  • San Francisco, CA
  • NPI 1518911304
  Medicare reassignment Care Compare group
• North East Medical Services

  • Federally Qualified Health Center (FQHC)
  • San Francisco, CA
  • NPI 1326279852
  NPD
• North East Medical Services

  • Community/Retail Pharmacy
  • San Jose, CA
  • NPI 1902616279
  NPD

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

{
    "created_epoch": "1762819200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762819200000",
    "number": "1720958903",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19043 DALMATIA PL",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945462840"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2633 SAN BRUNO AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941341597",
            "telephone_number": "888-500-1886"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHAK",
        "first_name": "ZACHARY",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-11-11",
        "last_updated": "2025-11-11",
        "certification_date": "2025-11-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "CA",
            "license": "36682",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michelle Hui Fong Chai, DPT
• Nu Chai, M.D.
• Jeremy James Chaillet, MD
• Pattaradanai Chaiyakot
• Kam Keung Chak, LCSW
• Pressley Ann Chakales, MD
• Allison Cali Paine Chakrabarti, M.D.
• Anindita Chakrabarti, M.D.
• Tushar Kumar Chakravarty, MD
• Rahul Chalamala

• Chiropractor in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Chiropractor in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.