ROMY S KALLAS MD
NPI 1629563978
Internal Medicine - Rheumatology in New York, NY
About Romy S Kallas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROMY S KALLAS MD (NPI 1629563978) is an individual rheumatology provider in New York, New York, licensed in New York (314732) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS, is affiliated with Hospital For Special Surgery, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
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
Romy S Kallas Md 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 Reassignment
Medicare enrollment records show Romy Kallas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 121 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hospital For Special Surgery
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10021 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10021
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 Romy Kallas's NPI number?
The NPI number for Romy Kallas is 1629563978. It was assigned to this individual provider in the NPPES registry on June 28, 2018.
Where is Romy Kallas located?
Romy Kallas practices at 535 E 70th St, New York, NY 10021. The listed phone number is (212) 774-2189.
What is Romy Kallas's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Romy Kallas enrolled in Medicare?
Yes. Romy Kallas 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 organization bills Medicare for Romy Kallas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Romy Kallas reassigns Medicare benefits to New York Society For The Relief Of Ruptured & Crippled Maintaining (New York, NY). 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 Romy Kallas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Romy Kallas affiliated with any hospitals?
According to CMS data, Romy Kallas is affiliated with Hospital For Special Surgery.
When was this NPI record last updated?
The NPPES record for Romy Kallas was last updated on July 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Romy S Kallas, MD · NPI 1629563978
Rheumatology physician in New York, New York. Individual provider, active in the CMS NPPES registry since June 28, 2018.
## Identity
- **NPI:** 1629563978 (Entity type: Individual)
- **Enumerated:** June 28, 2018
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 314732 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 535 E 70TH ST, New York, NY 10021-4823
- **Phone:** (212) 774-2189
## 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:** New York Society For The Relief Of Ruptured & Crippled Maintaining (NPI 1427496652, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** July 25, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1629563978) · Data from the CMS NPPES public registry.