Mark Christian Knouse, MD

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

MD029621E Issued in PA

Practice address

1250 S Cedar Crest Blvd
Suite 200
Allentown, PA 18103-6224

Phone

(610) 402-8430

Fax

(610) 402-1676

NPI assigned

Nov 10, 2005

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

Enrolled in PA

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

Infectious DiseaseAlso: Internal Medicine

Education

Georgetown University School of Medicine, 1983

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lehigh Valley Physician GroupGroup PAC ID 3072425123, 2,512 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mknouse12160@direct2.lvhn.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.

• Lehigh Valley Physician Group

  • Developmental - Behavioral Pediatrics Physician
  • Allentown, PA
  • NPI 1780155689
  Medicare reassignment Care Compare group
• Hazleton Professional Services

  • Internal Medicine Physician
  • Hazleton, PA
  • NPI 1952464638
  Medicare reassignment NPD
• Lehigh Valley Physician Group

  • Family Medicine Physician
  • East Stroudsburg, PA
  • NPI 1245093368
  NPD
• Lehigh Valley Physician Group

  • Transplant Surgery Physician
  • Allentown, PA
  • NPI 1457309650
  NPD
• Lehigh Valley Physician Group

  • General Practice Physician
  • Hazleton, PA
  • NPI 1942609599
  NPD

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

{
    "created_epoch": "1131580800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789257600000",
    "number": "1144201765",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 783311",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191783311",
            "telephone_number": "484-884-4500",
            "fax_number": "484-884-0628"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1250 S CEDAR CREST BLVD",
            "address_2": "SUITE 200",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181036224",
            "telephone_number": "610-402-8430",
            "fax_number": "610-402-1676"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KNOUSE",
        "first_name": "MARK",
        "middle_name": "CHRISTIAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-10",
        "last_updated": "2026-09-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "PA",
            "license": "MD029621E",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1164760",
            "state": "PA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Melissa Linn Knecht, P.A.-C.
• Lisa Knicos, AU.D.
• Taylor Knobloch
• Lori Knoll, LPN
• Sarah Knop, PA-C
• Natalie Danielle Knowles
• Donna B Knox, LPC
• Francis Patrick Knox Jr.
• Howard J Knudson, MSPT
• Dong Ko, M.D.

• Infectious Disease Physician in Allentown, PA
• Providers in Allentown, PA by specialty
• Infectious Disease Physician in Pennsylvania

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