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R. NANDAN, M.D., INC
NPI 1639196579
Internal Medicine - Hematology & Oncology in Lakewood, CA

Active since July 16, 2006
3650 SOUTH ST, 212, LAKEWOOD, CA 90712(562) 272-7630(562) 272-7631 Get Directions Write a Review

NPPES record last updated: March 12, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About R. Nandan, M.d., Inc NPPES

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

R. NANDAN, M.D., INC (NPI 1639196579) is a healthcare organization registered as a hematology & oncology in Lakewood, California and active in the NPI registry since July 2006. The organization lists Raghu Nandan, President, as its authorized official.

NPPES Registry Identity

NPI1639196579
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameR. NANDAN, M.D., INC
Location Address3650 SOUTH ST, 212Lakewood, CA 90712-1502
Mailing Address3650 South St, 212Lakewood, CA 90712-1502 · (562) 272-7630 · Fax (562) 272-7631
Phone(562) 272-7630
Fax(562) 272-7631
Organization SubpartNo
Authorized OfficialRaghu NandanPresident · (562) 272-7630
Enumeration DateJuly 16, 2006
Last NPPES UpdateMarch 12, 2020
NPPES CertifiedMarch 12, 2020
✔ NPI 1639196579 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CA · A51197
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
3650 SOUTH ST, Lakewood, CA 90712
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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)

R. Nandan, M.d., Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to R. Nandan, M.D., Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Raghu Nandan, M.D
Hematology/Oncology
NPI 1861463606
3650 SOUTH ST 212
Lakewood, CA 90712
(562) 272-7630
✔ PECOS✔ Accepts MedicareSame address

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 R. Nandan, M.D., Inc's NPI number?

The NPI number for R. Nandan, M.D., Inc is 1639196579. It was assigned to this organization in the NPPES registry on July 16, 2006.

Where is R. Nandan, M.D., Inc located?

R. Nandan, M.D., Inc is located at 3650 South St 212, Lakewood, CA 90712. The listed phone number is (562) 272-7630.

What is R. Nandan, M.D., Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is R. Nandan, M.D., Inc enrolled in Medicare?

Yes. R. Nandan, M.D., Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through R. Nandan, M.D., Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Hematology/Oncology) reassigns their Medicare billing to R. Nandan, 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for R. Nandan, M.D., Inc was last updated on March 12, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.