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RICHARD A. RISON, M.D., INC.
NPI 1982754305
Specialist in Whittier, CA

Active since January 10, 2007
12291 WASHINGTON BLVD, SUITE 303, WHITTIER, CA 90606(562) 698-6296(562) 693-6752 Get Directions Write a Review

NPPES record last updated: November 28, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Richard A. Rison, M.d., Inc. NPPES

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

RICHARD A. RISON, M.D., INC. (NPI 1982754305) is a healthcare organization registered as a specialist in Whittier, California and active in the NPI registry since January 2007. The organization lists Richard A Rison, Owner, as its authorized official.

NPPES Registry Identity

NPI1982754305
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameRICHARD A. RISON, M.D., INC.
Location Address12291 WASHINGTON BLVD, SUITE 303Whittier, CA 90606-2500
Mailing Address12291 Washington Blvd, Suite 303Whittier, CA 90606-2500 · (562) 698-6296 · Fax (562) 693-6752
Phone(562) 698-6296
Fax(562) 693-6752
Organization SubpartNo
Authorized OfficialRichard A RisonOwner · (562) 698-0811
Enumeration DateJanuary 10, 2007
Last NPPES UpdateNovember 28, 2025
NPPES CertifiedNovember 28, 2025
✔ NPI 1982754305 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
12291 WASHINGTON BLVD, Whittier, CA 90606
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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)

Richard A. Rison, M.d., Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Richard A. Rison, M.D., Inc., which bills Medicare for the services they deliver. Of these, 6 practice at this address. They are listed nearest first.

Clinicians, nearest first (8)

Emily Malm, NP
Nurse Practitioner
NPI 1801128681
12291 WASHINGTON BLVD SUITE 303
Whittier, CA 90606
(562) 698-6296
✔ PECOSSame address
Henry Lin, M.D.
Neurology
NPI 1720104383
12291 WASHINGTON BLVD 303
Whittier, CA 90606
(562) 698-6296
✔ PECOS✔ Accepts MedicareSame address
Leonard Gale, M.D.
Neurology
NPI 1568447936
12291 WASHINGTON BLVD 303
Whittier, CA 90606
(562) 698-6296
✔ PECOS✔ Accepts MedicareSame address
Gautam Ganguly, M.D.
Neurology
NPI 1215912522
12291 WASHINGTON BLVD 303
Whittier, CA 90606
(562) 698-6296
✔ PECOS✔ Accepts MedicareSame address
Paul Helfgott, M.D.
Neurology
NPI 1316922107
12291 WASHINGTON BLVD 303
Whittier, CA 90606
(562) 698-6896
✔ PECOS✔ Accepts MedicareSame address
Richard Rison, M.D.
Neurology
NPI 1497730709
12291 WASHINGTON BLVD 303
Whittier, CA 90606
(562) 698-6296
✔ PECOS✔ Accepts MedicareSame address
Rodrigo Rodriguez, MD
Neurology
NPI 1669531232
1520 SAN PABLO ST STE 3000
Los Angeles, CA 90033
(323) 442-5710
✔ PECOS✔ Accepts Medicare11 mi
Abdi Morovati, D.O.
Neurology
NPI 1417000563
150 N ROBERTSON BLVD STE 205
Beverly Hills, CA 90211
(310) 657-8585
✔ PECOS✔ Accepts Medicare20 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 Richard A. Rison, M.D., Inc.'s NPI number?

The NPI number for Richard A. Rison, M.D., Inc. is 1982754305. It was assigned to this organization in the NPPES registry on January 10, 2007.

Where is Richard A. Rison, M.D., Inc. located?

Richard A. Rison, M.D., Inc. is located at 12291 Washington Blvd Suite 303, Whittier, CA 90606. The listed phone number is (562) 698-6296.

What is Richard A. Rison, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Richard A. Rison, M.D., Inc. enrolled in Medicare?

Yes. Richard A. Rison, M.D., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Richard A. Rison, M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 2 Medicare specialties reassign their Medicare billing to Richard A. Rison, M.D., Inc.. 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 Neurology (7) and Nurse Practitioner (1). Of these, 6 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Richard A. Rison, M.D., Inc. was last updated on November 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.