Mark Weissman, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

15521 Issued in OK

Practice address

7815 NW 23Rd St
Bethany, OK 73008

Phone

(405) 792-2147

Fax

(405) 603-1465

NPI assigned

Apr 17, 2007

Last updated

Oct 11, 2026By the provider in NPPES

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 2

Medicare fee-for-service enrollment

Enrolled in OK, TX2 enrollments

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 2

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mweissman732560@directa.mercy.net

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.

• Anadarko Indian Health Center

  • Federal Public Health Clinic/Center
  • Anadarko, OK
  • NPI 1881637403

  TX

  Medicare reassignment NPD
• Cherokee Nation

  • Multi-Specialty Clinic/Center
  • Sallisaw, OK
  • NPI 1780692723

  TX

  Medicare reassignment NPD
• Patriot Hyperbarics

  • Undersea and Hyperbaric Medicine (Emergency Medicine) Physician
  • Bethany, OK
  • NPI 1366149486
  Medicare reassignment NPD
• Cherokee Nation

  dba Cherokee Nation Public Health

  • Public Health or Welfare Agency
  • Tahlequah, OK
  • NPI 1013884154
  NPD
• Cherokee Nation

  • Multi-Specialty Clinic/Center
  • Vinita, OK
  • NPI 1558377226
  NPD
• Cherokee Nation

  • Multi-Specialty Clinic/Center
  • Muskogee, OK
  • NPI 1841207156
  NPD
• Integris South Oklahoma City Hospital Corporation

  dba Integris Health Southwest Medical Center

  • General Acute Care Hospital
  • Oklahoma City, OK
  • NPI 1457372625
  NPD (past)
• Lawton Indian Hospital

  • General Acute Care Hospital
  • Lawton, OK
  • NPI 1760489223
  NPD (past)

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

{
    "created_epoch": "1176768000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1791676800000",
    "number": "1336365568",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7815 NW 23RD ST",
            "city": "BETHANY",
            "state": "OK",
            "postal_code": "730084947",
            "telephone_number": "405-792-2147",
            "fax_number": "405-603-1465"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7815 NW 23RD ST",
            "city": "BETHANY",
            "state": "OK",
            "postal_code": "73008",
            "telephone_number": "405-792-2147",
            "fax_number": "405-603-1465"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WEISSMAN",
        "first_name": "MARK",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-04-17",
        "last_updated": "2026-10-11",
        "certification_date": "2023-05-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OK",
            "license": "15521",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN",
            "identifier": "374380YRHZ",
            "state": "OK"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100230000A",
            "state": "OK"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Ashton Rhylee Walton, PT
• Tonya C Washburn, MD
• Holly Dawn Watson
• Pamela Weaver, CMT
• Kelly Wedman, M.S.,CCC-SLP
• Wellness and Longevity LLC
• Wellnest Home Care LLC
• Stephenie Marie Wescoup, PH.D.
• Montrey Denise West, B.A.
• Christopher B White

• Internal Medicine Physician in Bethany, OK
• Providers in Bethany, OK by specialty
• Internal Medicine Physician in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 11, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.