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JOHN SCOTT UNDERWOOD MD
NPI 1508391194
Internal Medicine in Indianapolis, IN

Active since April 20, 2017PECOS EnrolledAccepts Medicare Assignment
8111 S EMERSON AVE STE 101, INDIANAPOLIS, IN 46237(317) 859-5252(317) 859-5258 Get Directions Write a Review

NPPES record last updated: March 24, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 24, 2025, Feb 3, 2025, Nov 22, 2023 and 2 more (5 updates tracked since 2017).

About John Scott Underwood Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN SCOTT UNDERWOOD MD (NPI 1508391194) is an individual internal medicine provider in Indianapolis, Indiana, licensed in Indiana (01086002A) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Major Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1508391194
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJOHN SCOTT UNDERWOODCredential: MD
Location Address8111 S EMERSON AVE STE 101Indianapolis, IN 46237-8601
Mailing AddressPo Box 781076Detroit, MI 48278-1076 · (317) 528-4800 · Fax (317) 865-1479
Phone(317) 859-5252
Fax(317) 859-5258
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Columbia School Of MedicineGraduated 2017
Enumeration DateApril 20, 2017
Last NPPES UpdateMarch 24, 20255 updates tracked since enumeration
NPPES CertifiedMarch 24, 2025
✔ NPI 1508391194 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IN · 01086002A
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPediatricsTaxonomy 208000000X · License 01086002A (IN)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
8111 S EMERSON AVE STE 101, Indianapolis, IN 46237
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1705 Riley Hospital Dr Rm 5867Indianapolis, IN 46202-5109 · Phone (317) 948-0003
Location 2550 University Blvd # Uh1501Indianapolis, IN 46202-5149 · Phone (317) 948-1310 · Fax (317) 948-0503

Other Identifiers 2

Medicaid300067966IN
Other068010916IN · Medicare Ptan

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John Scott Underwood Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6709153315
PECOS Enrollment IDI20221021001475
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Major Hospital

Acute Care Hospitals · Shelbyville, IN
4/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number150097
Location2451 Intelliplex DrShelbyville, IN 46176 · Shelby County
Emergency services Birthing friendly

Franciscan Health Indianapolis

Acute Care Hospitals · Indianapolis, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number150162
Location8111 S Emerson AveIndianapolis, IN 46237 · Marion County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46237 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HARSHA AVINASH RANGANATH M.D.
Internal Medicine (Hematology & Oncology)
8111 S EMERSON AVE STE 101
INDIANAPOLIS, IN 46237
Marion County (317) 859-5252
JAINIE CLARK RN, NP-C
Nurse Practitioner (Family)
8111 S EMERSON AVE STE 101
INDIANAPOLIS, IN 46237
Marion County (317) 528-1420
ALISON L LAFLOWER MSN, APRN, BC
Nurse Practitioner (Adult Health)
8111 S EMERSON AVE STE 101
INDIANAPOLIS, IN 46237
Marion County (317) 859-5252
DR. PATRICK HECKMAN DO
Internal Medicine (Hematology & Oncology)
8111 S EMERSON AVE STE 101
INDIANAPOLIS, IN 46237
Marion County (317) 528-2270
ELIZABETH ANN KUJALA
Nurse Practitioner (Family)
8111 S EMERSON AVE STE 101
INDIANAPOLIS, IN 46237
Marion County (317) 859-5252
DR. MICHAEL T SLAUGHTER M.D., PH.D.
Internal Medicine (Medical Oncology)
8111 S EMERSON AVE STE 101
INDIANAPOLIS, IN 46237
Marion County (317) 859-5252
KRISTEN MASTER FNP-C
Nurse Practitioner (Family)
8111 S EMERSON AVE STE 101
INDIANAPOLIS, IN 46237
Marion County (317) 859-5252
ASHLEY JEAN LYNN PHARMD
Pharmacist
8111 S EMERSON AVE STE 101
INDIANAPOLIS, IN 46237
Marion County (317) 528-1430

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Underwood's NPI number?

The NPI number for John Underwood is 1508391194. It was assigned to this individual provider in the NPPES registry on April 20, 2017.

Where is John Underwood located?

John Underwood practices at 8111 S Emerson Ave Ste 101, Indianapolis, IN 46237. The listed phone number is (317) 859-5252.

What is John Underwood's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is John Underwood enrolled in Medicare?

Yes. John Underwood is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Underwood accept?

Health plans from CareSource list John Underwood as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Underwood affiliated with any hospitals?

According to CMS data, John Underwood is affiliated with Major Hospital and Franciscan Health Indianapolis.

When was this NPI record last updated?

The NPPES record for John Underwood was last updated on March 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.