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RANGASAMY RAMANATHAN MD
NPI 1891890760
Pediatrics - Neonatal-Perinatal Medicine in West Hollywood, CA

Active since September 14, 2006PECOS Enrolled
8700 BEVERLY BLVD STE 4221, WEST HOLLYWOOD, CA 90048(310) 423-4451(310) 423-4131 Get Directions Write a Review

NPPES record last updated: March 22, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Rangasamy Ramanathan Md NPPES

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

RANGASAMY RAMANATHAN MD (NPI 1891890760) is an individual neonatal-perinatal medicine provider in West Hollywood, California, licensed in California (A41002) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Los Angeles.

NPPES Registry Identity

NPI1891890760
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameRANGASAMY RAMANATHANCredential: MD
Location Address8700 BEVERLY BLVD STE 4221West Hollywood, CA 90048-1804
Mailing Address4140 W 190th StTorrance, CA 90504-5513
Phone(310) 423-4451
Fax(310) 423-4131
Sole ProprietorNo
Enumeration DateSeptember 14, 2006
Last NPPES UpdateMarch 22, 2024
NPPES CertifiedMarch 22, 2024
✔ NPI 1891890760 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in CA · A41002
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
8700 BEVERLY BLVD STE 4221, West Hollywood, CA 90048
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Secondary Practice Location 1

Location 14650 W Sunset BlvdLos Angeles, CA 90027-6062 · Phone (323) 226-3406 · Fax (323) 226-3440

Other Identifiers 2

Medicaid00A410020CA
Other00A410020F45CA · Caloptima

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rangasamy Ramanathan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Rangasamy Ramanathan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cedars-Sinai Medical Center
Same address
General Acute Care Hospital
8700 BEVERLY BLVD
Los Angeles, CA 90048
  • Reassigned Medicare billing, California enrollment
  • 1,001 clinicians in this Medicare group
NPI 1639172372 (323) 866-8600

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

Other Providers at the Same Location NPPES 20

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

DR. MANOJ A BINIWALE M.D.
Pediatrics (Neonatal-Perinatal Medicine)
8700 BEVERLY BLVD STE 4221
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-4451
YOUNGEUN M PARK MD, MPH
Pediatrics (Neonatal-Perinatal Medicine)
8700 BEVERLY BLVD STE 4221
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-4451
DIPTI PADHYA
Pediatrics (Pediatric Critical Care Medicine)
8700 BEVERLY BLVD STE 4221
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-6310
ALEXANDRA R OLIVER MD
Pediatrics
8700 BEVERLY BLVD STE 4221
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-4780
SONAM TANNA SIDHU
Pediatrics (Pediatric Critical Care Medicine)
8700 BEVERLY BLVD STE 4221
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-6310
DR. MARC DAVID DADIOS M.D.
Pediatrics
8700 BEVERLY BLVD STE 4221
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-5000
KINSA THI OO MD
Pediatrics
8700 BEVERLY BLVD STE 4221
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-4451
DR. OPHIR DAVID KLEIN M.D.,PH.D
Medical Genetics (Clinical Genetics (M.D.))
8700 BEVERLY BLVD STE 4221
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-4463

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 Rangasamy Ramanathan's NPI number?

The NPI number for Rangasamy Ramanathan is 1891890760. It was assigned to this individual provider in the NPPES registry on September 14, 2006.

Where is Rangasamy Ramanathan located?

Rangasamy Ramanathan practices at 8700 Beverly Blvd Ste 4221, West Hollywood, CA 90048. The listed phone number is (310) 423-4451.

What is Rangasamy Ramanathan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Rangasamy Ramanathan enrolled in Medicare?

Yes. Rangasamy Ramanathan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rangasamy Ramanathan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rangasamy Ramanathan reassigns Medicare benefits to Cedars-Sinai Medical Center (Los Angeles, CA). The 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 Rangasamy Ramanathan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Rangasamy Ramanathan was last updated on March 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.