1. Home
  2. Directory
  3. Massachusetts
  4. Hingham
  5. Internal Medicine
  6. NPI Profile

DEFIANT HEALTH, P.C.
NPI 1861285454
Internal Medicine in Hingham, MA

Active since May 27, 2025
99 DERBY ST STE 200, HINGHAM, MA 02043(302) 303-5433 Get Directions Write a Review

NPPES record last updated: May 27, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Defiant Health, P.c. NPPES

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

DEFIANT HEALTH, P.C. (NPI 1861285454), doing business as Defiant Health, is a healthcare organization registered as an internal medicine in Hingham, Massachusetts and active in the NPI registry since May 2025. The organization lists Kyon Hood, President, as its authorized official.

NPPES Registry Identity

NPI1861285454
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDEFIANT HEALTH, P.C.
Location Address99 DERBY ST STE 200Hingham, MA 02043-4216
Mailing Address68 Harrison Ave Ste 605Boston, MA 02111-1929
Phone(302) 303-5433
Organization SubpartNo
Authorized OfficialKyon HoodPresident · (302) 303-5433
Enumeration DateMay 27, 2025
NPPES CertifiedMay 27, 2025
✔ NPI 1861285454 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
99 DERBY ST STE 200, Hingham, MA 02043
Open in Google Maps ↗

Other Names 1

Doing Business AsDefiant Health

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Defiant Health, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Defiant Health, P.C., which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Payal Srinivasa, M.D.
Obstetrics/Gynecology
NPI 1417122854
230 WORCESTER ST OB/GYN
Wellesley, MA 02481
(781) 431-5429
✔ PECOS✔ Accepts Medicare20 mi
Christina Palmer, M.D.
Family Practice
NPI 1356636138
12605 E 16TH AVE
Aurora, CO 80045
(720) 848-0000
✔ PECOS✔ Accepts Medicare1,771 mi

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 Defiant Health, P.C.'s NPI number?

The NPI number for Defiant Health, P.C. is 1861285454. It was assigned to this organization in the NPPES registry on May 27, 2025. The provider is doing business as Defiant Health.

Where is Defiant Health, P.C. located?

Defiant Health, P.C. is located at 99 Derby St Ste 200, Hingham, MA 02043. The listed phone number is (302) 303-5433.

What is Defiant Health, P.C.'s specialty?

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

Is Defiant Health, P.C. enrolled in Medicare?

Yes. Defiant Health, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Defiant Health, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Defiant Health, P.C., in Family Practice and Obstetrics/Gynecology. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Defiant Health, P.C. was last updated on May 27, 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.