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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MAJOR MULTISPECIALTY ASSOCIATES
NPI 1437398492
Internal Medicine in Shelbyville, IN

Active since February 16, 2009
2451 INTELLIPLEX DR, SHELBYVILLE, IN 46176(317) 392-3211(317) 398-1851 Get Directions Write a Review

NPPES record last updated: October 9, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 9, 2026, Feb 7, 2025, Nov 5, 2024 and 5 more (8 updates tracked since 2017).

About Major Multispecialty Associates NPPES

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

MAJOR MULTISPECIALTY ASSOCIATES (NPI 1437398492), doing business as Mhp Behavioral Health, is a healthcare organization registered as an internal medicine in Shelbyville, Indiana and active in the NPI registry since February 2009. The organization maintains 16 additional practice locations and lists Ryan Claxton, Ceo, as its authorized official.

NPPES Registry Identity

NPI1437398492
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMAJOR MULTISPECIALTY ASSOCIATES
Location Address2451 INTELLIPLEX DRShelbyville, IN 46176-8580
Mailing Address30 W Rampart St, Suite 200Shelbyville, IN 46176-8846 · (317) 421-2012 · Fax (317) 398-1851
Phone(317) 392-3211
Fax(317) 398-1851
Organization SubpartNo
Authorized OfficialRyan ClaxtonCeo · (317) 392-3211
Enumeration DateFebruary 16, 2009
Last NPPES UpdateOctober 9, 20268 updates tracked since enumeration
NPPES CertifiedOctober 9, 2026
✔ NPI 1437398492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 15

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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 ListedAnesthesiologyTaxonomy 207L00000X
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedFamily Medicine · Sports MedicineTaxonomy 207QS0010X
Also ListedInternal Medicine · NephrologyTaxonomy 207RN0300X
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X
Also ListedPediatricsTaxonomy 208000000X
Also ListedPlastic SurgeryTaxonomy 208200000X
Also ListedSurgeryTaxonomy 208600000X
Also ListedUrologyTaxonomy 208800000X
Also ListedPodiatristTaxonomy 213E00000X
Also ListedPodiatrist · Foot & Ankle SurgeryTaxonomy 213ES0103X
Also ListedNurse PractitionerTaxonomy 363L00000X
2451 INTELLIPLEX DR, Shelbyville, IN 46176
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Other Names 13

Doing Business AsMhp Behavioral Health
Doing Business AsMhp Cardiometabolic And Liver Health Center
Doing Business AsMhp Force Orthopaedics
Doing Business AsMhp Foot And Ankle Surgery
Doing Business AsMhp Lifestyle Medicine & Bone Health
Doing Business AsMhp Nephrology And Infectious Disease
Doing Business AsMhp Neurology
Doing Business AsMhp Oncology And Hematology
Doing Business AsMhp Podiatry
Doing Business AsMhp Priority Care
Doing Business AsMhp Pulmonology
Doing Business AsMhp Plastic And Breast Surgery
Doing Business AsMhp Sports Medicine

Secondary Practice Locations 16

Location 12455 Intelliplex DrShelbyville, IN 46176-8535 · Phone (317) 421-1800 · Fax (317) 421-1894
Location 2275 W Bassett Rd Ste 2Shelbyville, IN 46176-8575 · Phone (317) 392-2161 · Fax (317) 398-1870
Location 32451 Intelliplex Dr Ste 280Shelbyville, IN 46176-8580 · Phone (317) 392-0222 · Fax (317) 392-0722
Location 430 W Rampart St Ste 250Shelbyville, IN 46176-8897 · Phone (317) 398-7644 · Fax (317) 398-1860
Location 52451 Intelliplex Dr. Ste 250Shelbyville, IN 46176-8580 · Phone (317) 398-5303 · Fax (317) 398-1816
Location 630 W Rampart St Ste 160Shelbyville, IN 46176-8845 · Phone (317) 392-2971 · Fax (317) 398-1894
Location 7275 W Bassett Rd Ste 4Shelbyville, IN 46176-8575 · Phone (317) 421-2663 · Fax (317) 398-1859
Location 82451 Intelliplex Dr Ste 215Shelbyville, IN 46176-8581 · Phone (317) 421-1917 · Fax (317) 825-5303
Location 9275 W Bassett Rd Ste 3Shelbyville, IN 46176-8575 · Phone (317) 421-3265 · Fax (317) 398-1872
Location 102451 INTELLIPLEX DR STE 205SHELBYVILLE, IN 46176-8581 · Phone (317) 421-1914 · Fax (317) 398-1853
Location 112158 Intelliplex Dr Ste 100Shelbyville, IN 46176-8548 · Phone (317) 421-1980 · Fax (317) 398-1822
Location 1230 W RAMPART ST STE 180SHELBYVILLE, IN 46176-8897 · Phone (317) 392-0003 · Fax (317) 398-1859
Location 132451 Intelliplex Dr Ste 210Shelbyville, IN 46176-8581 · Phone (317) 421-1914 · Fax (317) 398-1853
Location 142325 Intelliplex Dr Ste 207Shelbyville, IN 46176-8546 · Phone (317) 392-2971 · Fax (317) 398-1894
Location 152120 Intelliplex Dr. Ste 102Shelbyville, IN 46176-8547 · Phone (317) 421-5713 · Fax (317) 421-5713
Location 162451 Intelliplex Dr Ste 295Shelbyville, IN 46176-8580 · Phone (317) 398-5237 · Fax (317) 825-5316

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Major Multispecialty Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

73

Medicare enrollment records show 73 clinicians reassign Medicare billing to Major Multispecialty Associates, which bills Medicare for the services they deliver. Of these, 7 practice at this address and 62 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 15

Nurse Practitioner26
Family Practice7
Neurology7
Clinical Social Worker6
Podiatry5
General Surgery4
Mental Health Counselor4
Orthopedic Surgery4
7 other specialties10

Nearest to this location (20)

See all 73
Olivia Cummings Mutambuze, MD
Neurology
NPI 1669114864
2451 INTELLIPLEX DR STE 250
Shelbyville, IN 46176
(317) 398-5267
✔ PECOSSame address
Ashli Elrod, MD
Neurology
NPI 1386386431
2451 INTELLIPLEX DR STE 250
Shelbyville, IN 46176
(317) 398-5267
✔ PECOS✔ Accepts MedicareSame address
Melissa Litmer, LCSW
Clinical Social Worker
NPI 1457803561
2451 INTELLIPLEX DR
Shelbyville, IN 46176
(812) 212-4522
✔ PECOS✔ Accepts MedicareSame address
Jorge Diego, MD
Internal Medicine
NPI 1669400198
2451 INTELLIPLEX DR STE 260
Shelbyville, IN 46176
(317) 398-0121
✔ PECOS✔ Accepts MedicareSame address
Caprice Gilpin, M.D.
Psychiatry
NPI 1114377595
2451 INTELLIPLEX DR
Shelbyville, IN 46176
(317) 392-3211
✔ PECOS✔ Accepts MedicareSame address
Anupama Mohanram, M.D.
Internal Medicine
NPI 1083679724
2451 INTELLIPLEX DR STE 210
Shelbyville, IN 46176
(317) 421-2012
✔ PECOS✔ Accepts MedicareSame address
Melanie Dowell, FNP
Nurse Practitioner
NPI 1487367363
2455 INTELLIPLEX DR
Shelbyville, IN 46176
(317) 421-1800
✔ PECOS✔ Accepts MedicareSame address
Jean Babbitt, NP
Nurse Practitioner
NPI 1730391483
2451 INTELLIPLEX DR
Shelbyville, IN 46176
(317) 392-1987
✔ PECOS✔ Accepts Medicare0.1 mi
Nicole Bowman, N.P.
Nurse Practitioner
NPI 1225474695
2451 INTELLIPLEX DR SUITE 240
Shelbyville, IN 46176
(317) 421-1914
✔ PECOS✔ Accepts Medicare0.1 mi
Lindsay Harless, LMHC
Mental Health Counselor
NPI 1114466430
2451 INTELLIPLEX DR STE 230
Shelbyville, IN 46176
(317) 398-0193
✔ PECOS✔ Accepts Medicare0.1 mi
Basil Holoyda, M.D.
Neurology
NPI 1093753451
2451 INTELLIPLEX DR
Shelbyville, IN 46176
(317) 392-3211
✔ PECOS✔ Accepts Medicare0.1 mi
Wentao Mi, MD, PHD
Neurology
NPI 1023677648
2451 INTELLIPLEX DR STE 250
Shelbyville, IN 46176
(317) 398-5267
✔ PECOS✔ Accepts Medicare0.1 mi
Shotaro Sano, D.O
General Surgery
NPI 1962806851
2451 INTELLIPLEX DR STE 280
Shelbyville, IN 46176
(317) 392-0222
✔ PECOS✔ Accepts Medicare0.1 mi
Robert Shellman, M.D.
Pulmonary Disease
NPI 1659339927
2451 INTELLIPLEX DR SUITE 205
Shelbyville, IN 46176
(317) 421-1914
✔ PECOS✔ Accepts Medicare0.1 mi
Emily Ann Andaya, MD
Family Practice
NPI 1578874905
2451 INTELLIPLEX DR STE 260
Shelbyville, IN 46176
(317) 398-0121
✔ PECOS✔ Accepts Medicare0.1 mi
Charity Behrman, LCSW
Clinical Social Worker
NPI 1215675129
2451 INTELLIPLEX DR
Shelbyville, IN 46176
(317) 398-5212
✔ PECOS0.1 mi
Joseph Candela
Podiatry
NPI 1225526676
275 W BASSETT RD STE 4
Shelbyville, IN 46176
(317) 421-2663
✔ PECOS✔ Accepts Medicare0.2 mi
Ovidiu Cristea, MD, FACS
Plastic and Reconstructive Surgery
NPI 1790942175
2158 INTELLIPLEX DR STE 100
Shelbyville, IN 46176
(317) 421-1980
✔ PECOS✔ Accepts Medicare0.4 mi
Gregory Howard, MD
Sports Medicine
NPI 1891739454
2120 INTELLIPLEX DR STE 102
Shelbyville, IN 46176
(317) 421-5713
✔ PECOS✔ Accepts Medicare0.5 mi
Sean Garringer, MD
Orthopedic Surgery
NPI 1497914287
30 W RAMPART ST SUITE 160
Shelbyville, IN 46176
(317) 392-2161
✔ PECOS✔ Accepts Medicare0.9 mi
See all 73 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Major Multispecialty Associates's NPI number?

The NPI number for Major Multispecialty Associates is 1437398492. It was assigned to this organization in the NPPES registry on February 16, 2009. The provider is doing business as MHP Behavioral Health, MHP Cardiometabolic and Liver Health Center, Mhp Force Orthopaedics and MHP Foot and Ankle Surgery. Additional names are listed in the Other Names section above.

Where is Major Multispecialty Associates located?

Major Multispecialty Associates is located at 2451 Intelliplex Dr, Shelbyville, IN 46176. The listed phone number is (317) 392-3211.

What is Major Multispecialty Associates's specialty?

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

Is Major Multispecialty Associates enrolled in Medicare?

Yes. Major Multispecialty Associates is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Major Multispecialty Associates?

According to the CMS Revalidation Reassignment List (October 2026 release), 73 clinicians in 15 Medicare specialties reassign their Medicare billing to Major Multispecialty Associates. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (26), Family Practice (7) and Neurology (7). Of these, 7 practice at this address and 62 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Major Multispecialty Associates accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 1 other insurer list Major Multispecialty Associates 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.

When was this NPI record last updated?

The NPPES record for Major Multispecialty Associates was last updated on October 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.