Aaron Barak Neinstein, MD

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

A106501 Issued in CA

Practice address

400 Parnassus Avenue
Ste A550
San Francisco, CA 94143

Phone

(415) 353-2350

Fax

(415) 353-2337

NPI assigned

Feb 2, 2009

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

EndocrinologyAlso: Internal Medicine

Education

University of Southern California Keck School of Medicine, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Regents of the University of CaliforniaGroup PAC ID 4284547274, 706 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Quality

95

Improvement activities

40

Cost

80.65

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Regents of the University of California

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1760552343
  Medicare reassignment Care Compare group
• University of California San Francisco

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment NPD
• Regents of the University of California

  • Rheumatology Physician
  • San Francisco, CA
  • NPI 1881763597
  NPD (past)
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104
  NPD (past)
• University of California San Francisco

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • San Francisco, CA
  • NPI 1992818256
  NPD (past)
• University of California San Francisco Medical Center

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1144325440
  NPD (past)
• Clifton Springs Sanitarium Co

  • General Acute Care Hospital
  • Clifton Springs, NY
  • NPI 1366505463
  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": "1233532800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1526342400000",
    "number": "1205074028",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 PARNASSUS AVENUE",
            "address_2": "STE A550",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941431222",
            "telephone_number": "415-353-2350",
            "fax_number": "415-353-2337"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 PARNASSUS AVENUE",
            "address_2": "STE A550",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "94143",
            "telephone_number": "415-353-2350",
            "fax_number": "415-353-2337"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NEINSTEIN",
        "first_name": "AARON",
        "middle_name": "BARAK",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-02-02",
        "last_updated": "2018-05-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2083C0008X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Clinical Informatics",
            "state": "CA",
            "license": "A106501",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "CA",
            "license": "A106501",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Katherine Neilan, M.D.
• Emily Neill, M.D.
• Thomas Neill, PHD
• Elizabeth Neilson, RD
• Cameron Neimand
• Nazaneen Amina Nekbeen, MA
• Haleh Nekoorad-Long, M.D.
• Jon Cary Nekota, O.D.
• Peter Michael Nelken, NP, ANP-BC
• Elijah Nella, LMFT

• Endocrinology, Diabetes & Metabolism Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Endocrinology, Diabetes & Metabolism Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 15, 2018; 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.