Carl Herrick Critz, MD

Primary specialty

Cytopathology PhysicianTaxonomy code 207ZC0500X

License

G68421 Issued in CA

Practice address

6001 Norris Canyon Rd
San Ramon, CA 94583-5400

Phone

(925) 275-8408

Fax

(925) 275-8362

NPI assigned

May 16, 2006

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Delta Pathology Associates Medical Group Inc

  • Clinical Medical Laboratory
  • Stockton, CA
  • NPI 1306814918

  Cytopathology

  NPD (past)
• Precision Pathology Medical Group Inc

  • Clinical Medical Laboratory
  • San Ramon, CA
  • NPI 1356662209
  NPD (past)
• Yosemite Pathology Medical Group, in

  • Clinical Medical Laboratory
  • Tracy, CA
  • NPI 1114192176
  NPD (past)

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

{
    "created_epoch": "1147737600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1740232107",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6001 NORRIS CANYON RD",
            "city": "SAN RAMON",
            "state": "CA",
            "postal_code": "945835400",
            "telephone_number": "925-275-8408",
            "fax_number": "925-275-8362"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6001 NORRIS CANYON RD",
            "city": "SAN RAMON",
            "state": "CA",
            "postal_code": "945835400",
            "telephone_number": "925-275-8408",
            "fax_number": "925-275-8362"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CRITZ",
        "first_name": "CARL",
        "middle_name": "HERRICK",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-16",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "CA",
            "license": "G68421",
            "primary": false
        },
        {
            "code": "207ZC0500X",
            "taxonomy_group": "",
            "desc": "Pathology, Cytopathology",
            "state": "CA",
            "license": "G68421",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Courteous Healthcare Inc
• Patricia Garay Cowick, MFT
• Nianna Crawford
• Catherine Creighton
• Cristian J Fernandez DDS Inc
• Natalie Lynne Croak
• Nicola Crofts
• Mathew Crome
• La Kenda Crosby, CERTIFIED PHLEBOTOMY
• Mary Ruth Cross, M.S., M.F.T.

• Cytopathology Physician in San Ramon, CA
• Providers in San Ramon, CA by specialty
• Cytopathology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.