John Mellas, MD

Primary specialty

Nephrology PhysicianTaxonomy code 207RN0300X

License

R3E73 Issued in MO

Practice address

1011 Bowles Ave Ste 220
Fenton, MO 63026-2384

Phone

(636) 681-3030

Fax

(636) 326-1545

NPI assigned

Apr 27, 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

Enrolled in MO

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

NephrologyAlso: Internal Medicine

Education

University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 1977

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nephrology and Hypertension Specialists LLCGroup PAC ID 4082501804, shared by 2 NPIs, 7 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• FMC - University City Dialysis facility, University City, MO, CCN 262539
• RAI Care Center -Hampton Dialysis facility, Saint Louis, MO, CCN 262614
• DaVita Shrewsbury Dialysis Dialysis facility, Saint Louis, MO, CCN 262572
• SSM St Clare Health Center Hospital, Fenton, MO, CCN 260081
• SSM Health St Mary'S Hospital - St Louis Hospital, Saint Louis, MO, CCN 260091
• Missouri Baptist Medical Center Hospital, Saint Louis, MO, CCN 260108

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: john.mellas.p1@direct.nephrologyhtn.nextgenshare.com

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.

• Nephrology and Hypertension Specialists, LLC

  • Nephrology Physician
  • Fenton, MO
  • NPI 1730127200
  Medicare reassignment NPD Authorized official
• Nephrology and Hypertension Specialists, LLC

  • Nephrology Physician
  • Creve Coeur, MO
  • NPI 1770554842
  Medicare reassignment NPD
• NHS South LLC

  • Nephrology Physician
  • Saint Louis, MO
  • NPI 1376166066
  NPD (past)
• Renal Alliance, LLC

  • Nephrology Physician
  • Saint Louis, MO
  • NPI 1639141625
  NPD (past)
• St Louis Nephrology Associates LLC

  • Nephrology Physician
  • Saint Louis, MO
  • NPI 1619912797
  NPD (past)

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

• Dva Renal Healthcare Inc

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Saint Louis, MO
  • NPI 1326009937

  Dialysis facility

  Care Compare affiliation Name & address match
• Nra-St. Louis, Missouri, LLC

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Saint Louis, MO
  • NPI 1548201874

  Dialysis facility

  Care Compare affiliation Name & address match
• Renex Dialysis Clinic of University City, Inc.

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Saint Louis, MO
  • NPI 1639281538

  Dialysis facility

  Care Compare affiliation Name & address match
• Missouri Baptist Medical Center

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1487663506
  Care Compare affiliation
• SSM Health Care St. Louis

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1336387836
  Care Compare affiliation
• SSM Health Care St. Louis

  • General Acute Care Hospital
  • Fenton, MO
  • NPI 1851496152
  Care Compare affiliation
• SSM Health Care St. Louis

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1962572396
  Care Compare affiliation

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

{
    "created_epoch": "1146096000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1703030400000",
    "number": "1497712079",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1011 BOWLES AVE STE 220",
            "city": "FENTON",
            "state": "MO",
            "postal_code": "630262384",
            "telephone_number": "636-681-3030",
            "fax_number": "636-326-1545"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1011 BOWLES AVE STE 220",
            "city": "FENTON",
            "state": "MO",
            "postal_code": "630262384",
            "telephone_number": "636-681-3030",
            "fax_number": "636-326-1545"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "450 N New Ballas Rd Ste 204",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631416836",
            "country_code": "US",
            "telephone_number": "314-991-0137",
            "fax_number": "314-991-0603",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MELLAS",
        "first_name": "JOHN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-27",
        "last_updated": "2023-12-20",
        "certification_date": "2023-12-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "MO",
            "license": "R3E73",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "202250106",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Medcare Physician LLC
• Medexpress Urgent Care Missouri P.C.
• Rebecca Theresa Medlock, AGACNP-BC
• Jason Michael Mehrtens, MD
• Gary E. Meier, P.T.
• Ashley Menard, MA, LPC
• Stephen Menzel, O.D.
• Meramec Valley OBGYN Inc
• Brian James Mercier, PHARMD
• Mercy Health Services, LLC

• Nephrology Physician in Fenton, MO
• Providers in Fenton, MO by specialty
• Nephrology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 20, 2023; 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.