Monika Aplyn, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

2001014588 Issued in MO

Practice address

6420 Clayton Rd
Saint Louis, MO 63117-1811

Phone

(314) 768-8000

Fax

(314) 768-8011

NPI assigned

May 25, 2006

Last updated

Sep 29, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

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

Critical Care (Intensivists)Also: Internal Medicine

Education

Other, 1995

Medicare assignment

May accept Medicare assignment

Group practices

San Francisco Critical Care Med Group IncGroup PAC ID 1850285602, 18 clinicians

Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

John Muir Trauma Physicians Billing ServiceGroup PAC ID 3476542515, 111 clinicians

Diablo Pulmonary Medical Group IncGroup PAC ID 0042200362, 8 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• John Muir Medical Center - Concord Campus Hospital, Concord, CA, CCN 050496
• California Pacific Medical Center- Van Ness Campus Hospital, San Francisco, CA, CCN 050047
• John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Quality

89.92

Promoting interoperability

100

Improvement activities

40

Cost

78.23

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: maplyn175663@ehr.johnmuirhealth.com
• Direct secure messaging: maplyn89478@hisp.ehr.sutterhealth.org

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.

• Diablo Pulmonary Medical Group, Inc

  • Pulmonary Disease Physician
  • Concord, CA
  • NPI 1265443303
  Medicare reassignment Care Compare group NPD
• John Muir Trauma Physicians Billing Service

  • Hospitalist Physician
  • Walnut Creek, CA
  • NPI 1093864837
  Medicare reassignment Care Compare group NPD
• San Francisco Critical Care Med Group Inc

  • Pulmonary Disease Physician
  • San Francisco, CA
  • NPI 1215000211
  Medicare reassignment Care Compare group NPD
• Sutter Bay Medical Foundation

  dba Palo Alto Medial Foundation

  • Multi-Specialty Clinic/Center
  • Palo Alto, CA
  • NPI 1013950807
  Medicare reassignment Care Compare group
• Anesthesia & Analgesia Medical Group, Inc.

  • Anesthesiology Physician
  • Santa Rosa, CA
  • NPI 1659320984
  Medicare reassignment NPD
• Inpatient Specialists of California, PC

  • Internal Medicine Physician
  • San Bernardino, CA
  • NPI 1952792475
  Medicare reassignment NPD
• John Muir Trauma Physicians Billing Service

  • Trauma Surgery Physician
  • Walnut Creek, CA
  • NPI 1962551861

  Emergency Medicine

  NPD

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

• John Muir Health

  dba John Muir Health, Walnut Creek Medical Center

  • General Acute Care Hospital
  • Walnut Creek, CA
  • NPI 1740215219
  Care Compare affiliation
• John Muir Health

  dba John Muir Health Medical Center, Concord Campus

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1740348929
  Care Compare affiliation

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

{
    "created_epoch": "1148515200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1336195247",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1836 LACKLAND HILL PKWY",
            "address_2": "ATTN: CREDENTIALING",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631463572",
            "telephone_number": "314-989-0300",
            "fax_number": "314-810-1399"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6420 CLAYTON RD",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631171811",
            "telephone_number": "314-768-8000",
            "fax_number": "314-768-8011"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "APLYN",
        "first_name": "MONIKA",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-25",
        "last_updated": "2026-09-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MO",
            "license": "2001014588",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "2001014588",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1336195247",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Aperion Care Hidden Lake LLC
• Apex Clinical Diagnostics Services
• Apex Medical Supply LLC
• Apex Physical Therapy LLC
• Anthony John Apicelli III, MD
• Apollo Ambulatory Surgery Center, LLC
• Apollo Cardiology, LLC (Apollo Cardiology)
• Apollo Medical Holdings LLC
• Apollo Medical, Inc.
• John Kenneth Appelbaum, MD

• Internal Medicine Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Internal Medicine Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 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.