Prathayini Subarajan, DO

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

036160677 Issued in IL

Practice address

10370 Haligus Rd Ste 117
Huntley, IL 60142-9582

Phone

(815) 344-3900

Fax

(847) 802-7207

NPI assigned

Apr 4, 2019

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

Medicare fee-for-service enrollment

Enrolled in IL

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

EndocrinologyAlso: Internal Medicine

Education

Ohio University, College of Osteopathic Medicine, 2019

Medicare assignment

May accept Medicare assignment

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• Loyola University Medical Center Hospital, Maywood, IL, CCN 140276
• Northwestern Medicine Central Dupage Hospital Hospital, Winfield, IL, CCN 140242
• Loyola Gottlieb Memorial Hospital Hospital, Melrose Park, IL, CCN 140008
• Northwestern Medicine McHenry Hospital, McHenry, IL, CCN 140116
• Macneal Hospital Hospital, Berwyn, IL, CCN 140054

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as apm

Quality

88.97

Promoting interoperability

98.2

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: psubarajan162347@direct.luhs.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.

• Central Dupage Physician Group

  • Family Medicine Physician
  • Carol Stream, IL
  • NPI 1033149844

  Internal Medicine

  Medicare reassignment NPD
• Loyola University Medical Center

  • General Practice Physician
  • Maywood, IL
  • NPI 1336159961
  Medicare reassignment NPD
• Central Dupage Physician Group

  • Orthopaedic Surgery Physician
  • Geneva, IL
  • NPI 1780012344
  NPD
• Loyola University Medical Center

  • Community/Retail Pharmacy
  • Maywood, IL
  • NPI 1184789299
  NPD
• Loyola University Medical Center

  • General Acute Care Hospital
  • Maywood, IL
  • NPI 1376521575
  NPD

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

• Central Dupage Hospital Association

  • General Acute Care Hospital
  • Winfield, IL
  • NPI 1003864810
  Care Compare affiliation
• Central Dupage Hospital Association

  • Psychiatric Hospital Unit
  • Winfield, IL
  • NPI 1740230895
  Care Compare affiliation
• Gottlieb Community Health Services Corporation

  • General Acute Care Hospital
  • Berwyn, IL
  • NPI 1295710580
  Care Compare affiliation
• Gottlieb Memorial Hospital

  • General Acute Care Hospital
  • Melrose Park, IL
  • NPI 1831170232
  Care Compare affiliation
• Loyola University Medical Center

  • General Acute Care Hospital
  • Maywood, IL
  • NPI 1376521575
  Care Compare affiliation
• Loyola University Medical Center

  • General Acute Care Hospital
  • Tinley Park, IL
  • NPI 1427752013
  Care Compare affiliation
• Northern Illinois Medical Center

  • General Acute Care Hospital
  • McHenry, IL
  • NPI 1982611281
  Care Compare affiliation

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

{
    "created_epoch": "1554336000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1306308671",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10370 HALIGUS RD STE 117",
            "city": "HUNTLEY",
            "state": "IL",
            "postal_code": "601429582",
            "telephone_number": "815-344-3900",
            "fax_number": "847-802-7207"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10370 HALIGUS RD STE 117",
            "city": "HUNTLEY",
            "state": "IL",
            "postal_code": "601429582",
            "telephone_number": "815-344-3900",
            "fax_number": "847-802-7207"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "360 Station Dr Ste 300",
            "address_purpose": "LOCATION",
            "city": "Crystal Lake",
            "state": "IL",
            "postal_code": "600148003",
            "country_code": "US",
            "telephone_number": "815-344-3900",
            "fax_number": "815-356-2388",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SUBARAJAN",
        "first_name": "PRATHAYINI",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-04",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "IL",
            "license": "036160677",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036160677",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jo Ann Roberta Stegmaier, APN,NPC
• Brian Nicholas Steif
• Christine Kelly Stephenson
• Denise Story, P.T.A.
• May Arnaiz Suasin, APN, CNP
• Phillip Paul Sukel, DDS
• Joanna M Sullivan, LCSW
• Sun and Rain Counseling PLLC
• Spencer Grant Suppes, DO
• Karen L Swanson, APRN, CNP

• Endocrinology, Diabetes & Metabolism Physician in Huntley, IL
• Providers in Huntley, IL by specialty
• Endocrinology, Diabetes & Metabolism Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 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.