SUBHASH R VISWANATHAN M.D.
NPI 1508866542
Emergency Medicine in Jericho, NY
About Subhash R Viswanathan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUBHASH R VISWANATHAN M.D. (NPI 1508866542) is an individual emergency medicine provider in Jericho, New York, licensed in California (C149731) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Pennsylvania State University College Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Subhash R Viswanathan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
12Medicare enrollment records show Subhash Viswanathan reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Jericho, NY 11753
- Reassigned Medicare billing, New York enrollment
- 413 clinicians in this Medicare group
Poughkeepsie, NY 12601
- Reassigned Medicare billing, New York enrollment
- 201 clinicians in this Medicare group
Blythe, CA 92225
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1073554002 (California)
- 2,323 clinicians in this Medicare group
Victorville, CA 92395
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Hemet, CA 92543
- Reassigned Medicare billing, California enrollment
- 129 clinicians in this Medicare group
Hemet, CA 92543
- Reassigned Medicare billing, California enrollment
- 255 clinicians in this Medicare group
Murrieta, CA 92562
- Reassigned Medicare billing, California enrollment
- 112 clinicians in this Medicare group
Riverside, CA 92503
- Reassigned Medicare billing, California enrollment
- 48 clinicians in this Medicare group
Corona, CA 92882
- Reassigned Medicare billing, California enrollment
- 114 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 100 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11753 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Subhash Viswanathan's NPI number?
The NPI number for Subhash Viswanathan is 1508866542. It was assigned to this individual provider in the NPPES registry on July 29, 2005.
Where is Subhash Viswanathan located?
Subhash Viswanathan practices at 555 N Broadway, Jericho, NY 11753. The listed phone number is (516) 597-5070.
What is Subhash Viswanathan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Subhash Viswanathan enrolled in Medicare?
Yes. Subhash Viswanathan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Subhash Viswanathan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Subhash Viswanathan reassigns Medicare benefits to 12 organizations: Optum Urgent Care, PLLC (Jericho, NY), Emergency Physician Services Of New York, P.C. (Poughkeepsie, NY), Cep America-California (Blythe, CA), Ignite Emergency Physicians A Medical Corporation (Victorville, CA), Apex Emergency Medical Group, Inc. (Hemet, CA) and 7 more organizations, listed in the Medicare section above. Each 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 Subhash Viswanathan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Subhash Viswanathan accept?
Health plans from Blue Cross and Blue Shield of Texas list Subhash Viswanathan 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 Subhash Viswanathan was last updated on March 8, 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.
# Subhash R Viswanathan, M.D. · NPI 1508866542
Emergency Medicine physician in Jericho, New York. Individual provider, active in the CMS NPPES registry since July 29, 2005.
## Identity
- **NPI:** 1508866542 (Entity type: Individual)
- **Enumerated:** July 29, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** C149731 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 555 N BROADWAY, Jericho, NY 11753-2134
- **Phone:** (516) 597-5070 · **Fax:** (516) 597-5067
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 12 organizations under Medicare reassignment (form CMS-855R): Optum Urgent Care, PLLC (NPI 1285975797, Jericho, NY); Emergency Physician Services Of New York, P.C. (NPI 1093759847, Poughkeepsie, NY); Cep America-California (NPI 1710826581, Blythe, CA); Ignite Emergency Physicians A Medical Corporation (NPI 1437918307, Victorville, CA); Apex Emergency Medical Group, Inc. (NPI 1265711089, Hemet, CA); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pennsylvania State University College Of Medicine, class of 1994
## Record status
- **NPPES last updated:** March 8, 2024
- **Other identifiers:** Medicaid 0053783 (NJ)
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Source: [NPI Profile](https://npiprofile.com/npi/1508866542) · Data from the CMS NPPES public registry.