Individual provider Active NPI

John Eric Demko, M.D.

  • Nephrology Physician
  • San Francisco, CA
National Provider Identifier
1710419338
Registry record updated Jul 5, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
A161777 Issued in CA
Practice address
505 Parnassus Ave
San Francisco, CA 94143-2204
Phone
(484) 269-8669
NPI assigned
Apr 2, 2017
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 5, 2021

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X A161777 CA Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

505 Parnassus Ave
San Francisco, CA 94143-2204

Mailing address

500 Parnassus Ave
San Francisco, CA 94143-0532
Phone (415) 476-1000

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20250630000148 PA Practitioner - Internal MedicinePractitioner - Nephrology 6800298464 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Nephrology
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University of Penn-Medical GroupGroup PAC ID 6204730955, 3,433 clinicians

Practice addresses (Care Compare)

3400 Civic Ctr Blvd 1 S Pavilion
Nephrology/Hypertension Perelman Center
Philadelphia, PA 19104-4306
Phone (215) 662-2638

Hospital & facility affiliations

  • DaVita Radnor Dialysis Dialysis facility, King of Prussia, PA, CCN 392630
  • Hospital of Univ of Pennsylvania Hospital, Philadelphia, PA, CCN 390111
  • Chester County Hospital Hospital, West Chester, PA, CCN 390179

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Quality
95
Improvement activities
40
Cost
80.65

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A161777CAMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of Penn-Medical Group CurrentSince Jul 1, 2025 Accepting new patients
University of Penn - Medical Group Nephrology CurrentSince Jul 1, 2025 Accepting new patients
University of Penn-Medical Group Current Accepting new patients
University of Penn - Medical Group Past Accepting new patients

Locations

4126 Walnut St
Philadelphia, PA 19104
Phone (215) 387-0500

3624 Market St
Fl 2
Philadelphia, PA 19104
Phone (215) 615-3669

501 S 54th St
Philadelphia, PA 19143
Phone (215) 581-2046

4952 Parkside Ave
Philadelphia, PA 19131
Phone (215) 871-0810

PO B0x 824320
Philadelphia, PA 19182

3400 Civic Center Blvd
#1S
Philadelphia, PA 19104
Phone (215) 615-3321

3701 Market St
Fl 1
Philadelphia, PA 19104
Phone (215) 662-2250

3400 Spruce St
Fl 1
Philadelphia, PA 19104
Phone (215) 662-3005

250 King of Prussia Rd
Radnor, PA 19087
Phone (610) 902-1800

145 King of Prussia Rd
#205S
Radnor, PA 19087

Interoperability endpoints

  • Direct secure messaging: jdemko86632@direct-ucsfmedicalcenter.org

Organizations & group practices 4

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.

Hospital & facility affiliations 4

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": "1491091200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1625443200000",
    "number": "1710419338",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "500 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430532",
            "telephone_number": "415-476-1000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "505 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432204",
            "telephone_number": "484-269-8669"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEMKO",
        "first_name": "JOHN",
        "middle_name": "ERIC",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-04-02",
        "last_updated": "2021-07-05",
        "certification_date": "2021-07-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "CA",
            "license": "A161777",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.