Justin Nicholas Hamman, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

A183010 Issued in CA

Practice address

4150 V Street, PSSB 1200
Sacramento, CA 95817

Phone

(916) 734-5028

NPI assigned

Apr 13, 2020

Sex

Male

Sole proprietor

Yes

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

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

Anesthesiology

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regents of the Univ of CaGroup PAC ID 3375456619, 1,571 clinicians

Central Anesthesia Service Exchange Medical Group IncGroup PAC ID 9638082530, 106 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of California Davis Medical Center Hospital, Sacramento, CA, CCN 050599
• Sutter Roseville Medical Center Hospital, Roseville, CA, CCN 050309

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jhamman694244@hisp.ehr.sutterhealth.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.

• Central Anesthesia Service Exchange Medical Group, Inc.

  • Anesthesiology Physician
  • Sacramento, CA
  • NPI 1194826404
  Medicare reassignment Care Compare group NPD
• Regents of the Univ of Ca

  • Maternal & Fetal Medicine Physician
  • Sacramento, CA
  • NPI 1013906973
  Medicare reassignment Care Compare group NPD
• Regents of the Univ of Ca

  • Diagnostic Radiology Physician
  • Sacramento, CA
  • NPI 1477546406
  NPD
• Regents of the University of Ca

  • Anesthesiology Physician
  • Sacramento, CA
  • NPI 1659364677
  NPD
• Regents of the Univ of Ca

  • Pulmonary Disease Physician
  • Sacramento, CA
  • NPI 1437142692
  NPD (past)
• Sacsolano Anesthesia Exchange Medical Group, Inc

  • Anesthesiology Physician
  • Sacramento, CA
  • NPI 1720401284
  NPD (past)

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

• Regents of the University of California

  • General Acute Care Hospital
  • Sacramento, CA
  • NPI 1710918545
  Care Compare affiliation
• Sutter Valley Hospitals

  • General Acute Care Hospital
  • Roseville, CA
  • NPI 1356390264
  Care Compare affiliation

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

{
    "created_epoch": "1586736000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1245859818",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4150 V STREET, PSSB 1200",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958172837",
            "telephone_number": "916-734-5028"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4150 V STREET, PSSB 1200",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "95817",
            "telephone_number": "916-734-5028"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAMMAN",
        "first_name": "JUSTIN",
        "middle_name": "NICHOLAS",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2020-04-13",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "A183010",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jason Hamlin, MA
• Thomas Hamlin
• Michelle Yvonne Hamline, M.D., PH.D.
• Hammad Khan M D Inc
• Isha Mosa Hammad, PHD
• Elizabeth M. Hammel, MD
• Glenn Alan Hammel, PH.D.
• Stacey Anne Hammer
• Nichole Hammerstaedt
• Bonnee Jo Hammett

• Anesthesiology Physician in Sacramento, CA
• Providers in Sacramento, CA by specialty
• Anesthesiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; 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.