NPIMap

Individual provider Active NPI

Thomas Lanfear Griffiths, MD

  • Anesthesiology Physician
  • Denver, CO
National Provider Identifier
1811217250
Registry record updated Jun 3, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
DR.0059924 Issued in CO
Practice address
2045 N Franklin St
Denver, CO 80205-5437
Phone
(303) 338-4545
NPI assigned
Jun 8, 2010
Last updated
Jun 3, 2021By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 3, 2021

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X A117888 CA
Anesthesiology Physician 207L00000X DR.0059924 CO Primary

Addresses

Primary practice location

2045 N Franklin St
Denver, CO 80205-5437

Mailing address

10350 E Dakota Ave
Denver, CO 80247-1314

Other identifiers 1

IdentifierTypeStateIssuer
028847OtherCOKAISER COMMERCIAL NUMBER

Electronic endpoints 1

TypeEndpointUseAffiliation
SOAP URL https://careepiceast.kp.org:14430/Interconnect-prodcom/wcf/epic.community.hie/xcpdrespondinggateways Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO, MT, MI3 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20180529002895 CO Practitioner - Anesthesiology 4981869872 Reassigns benefits to 2 organizations
I20240301001520 MT Practitioner - Anesthesiology 4981869872 Reassigns benefits to 2 organizations
I20260107004271 MI Practitioner - Anesthesiology 4981869872 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Other, 2008
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Colorado Permanente Medical Group PCGroup PAC ID 1254238454, 1,325 clinicians
Billings ClinicGroup PAC ID 6002993516, 814 clinicians

Practice addresses (Care Compare)

100 Michigan Ave NE
Grand Rapids, MI 49503-2560

100 Michigan St NE RM
280 Corewell Health Medical Group West
Grand Rapids, MI 49503-2560
Phone (616) 267-0115

2045 N Franklin St
Kaiser Permanente Franklin Medical
Denver, CO 80205-5437
Phone (303) 338-4545

2800 10TH Ave N
Billings, MT 59101-0703
Phone (406) 657-4000

4444 Kalamazoo Ave SE
200 Corewell Health Medical Group West
Kentwood, MI 49508-4600
Phone (616) 391-5600

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
117888CAMDCounselor

Practice roles

OrganizationSpecialtyStatusNew patients
Billings Cinic CurrentSince Feb 19, 2024 Accepting new patients
Spectrum Health Primary Care Partners Current Accepting new patients
Billings Clinic Current Accepting new patients
Billings Clinic CurrentSince Feb 19, 2024 Accepting new patients
Hospitalist Medicine Physicians of Colorado - Denver PC Anesthesiology CurrentSince Aug 15, 2025 Accepting new patients
Southern California Permanente Medical Group CurrentSince Jan 5, 2021 Accepting new patients
Spectrum Health Primary Care Partners Anesthesiology CurrentSince Dec 7, 2025 Accepting new patients
Granite Peak Anesthesiology Consultants Anesthesiology CurrentSince Jun 2, 2024 Accepting new patients
Colorado Permanente Medical Group, P.C. Anesthesiology CurrentSince May 14, 2018 Accepting new patients

Locations

25825 Vermont Ave
Harbor City, CA 90710
Phone (310) 325-5111

4733 W Sunset Blvd
Los Angeles, CA 90027
Phone (213) 667-4784

4647 Zion Ave
San Diego, CA 92120
Phone (619) 528-3038

10350 E Dakota Ave
Denver, CO 80247
Phone (303) 636-3350

1375 E 19th Ave
Denver, CO 80218
Phone (303) 812-2000

2045 N Franklin St
Denver, CO 80205
Phone (303) 764-4666

100 Michigan St NE
Grand Rapids, MI 49503
Phone (616) 391-1680

4444 Kalamazoo Ave SE
Ste 200
Kentwood, MI 49508
Phone (616) 391-5600

2800 10th Ave N
Billings, MT 59101
Phone (406) 248-3290

3905 Wellness Way
Bozeman, MT 59718
Phone (406) 898-1200

Organizations & group practices 9

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 10

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

NPI Registry JSON

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

{
    "created_epoch": "1275955200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1622678400000",
    "number": "1811217250",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10350 E DAKOTA AVE",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802471314"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2045 N FRANKLIN ST",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802055437",
            "telephone_number": "303-338-4545"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRIFFITHS",
        "first_name": "THOMAS",
        "middle_name": "LANFEAR",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-06-08",
        "last_updated": "2021-06-03",
        "certification_date": "2021-06-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "A117888",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CO",
            "license": "DR.0059924",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "KAISER COMMERCIAL NUMBER",
            "identifier": "028847",
            "state": "CO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepiceast.kp.org:14430/Interconnect-prodcom/wcf/epic.community.hie/xcpdrespondinggateways",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "2045 N Franklin St",
            "city": "Denver",
            "state": "CO",
            "country_code": "US",
            "postal_code": "802055437",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.