Alan Lewis Shiffrin, M.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

18698 Issued in CO

Practice address

650 S Cherry St
Suite 1060
Denver, CO 80246-1801

Phone

(303) 355-3755

Fax

(303) 377-3849

NPI assigned

Feb 17, 2006

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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective Jan 1, 2017 through Jan 1, 2027

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Alan L Shiffrin, MD, PC

  • Psychiatry Physician
  • Denver, CO
  • NPI 1023322666

  Psychiatry

  NPD (past)

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

{
    "created_epoch": "1140134400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1831164565",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "650 S CHERRY ST",
            "address_2": "SUITE 1060",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802461801",
            "telephone_number": "303-355-3755",
            "fax_number": "303-377-3849"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "650 S CHERRY ST",
            "address_2": "SUITE 1060",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802461801",
            "telephone_number": "303-355-3755",
            "fax_number": "303-377-3849"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SHIFFRIN",
        "first_name": "ALAN",
        "middle_name": "LEWIS",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-17",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CO",
            "license": "18698",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01186980",
            "state": "CO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Mackenzie Shields, PCD(CAPPA)
• Sarah Lynn Shields
• Tsion Dejene Shiferaw, MD, MPH
• Ashleigh Raechel Shiffler, CNM
• Michelle Rose Shiffman, MD
• Shift Powered by Chiropractic LLC
• Holly Lee Shih, LCSW
• Tianchu Shih, DO
• Erin Shill, M.S. CCC-SLP
• Theodore Richard Shille, D.D.S.

• All providers in Denver, CO
• Psychiatry Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.