JIMMITTI TEYSIR MD
NPI 1629605233
Internal Medicine - Medical Oncology in New York, NY
About Jimmitti Teysir Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JIMMITTI TEYSIR MD (NPI 1629605233) is an individual medical oncology provider in New York, New York, licensed in New York (324325) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (2020).
NPPES Registry Identity
Specialties & Licenses 3
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
Jimmitti Teysir 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 Reassignments
4Medicare enrollment records show Jimmitti Teysir reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 259 clinicians in this Medicare group
New York, NY 10065
- Reassigned Medicare billing, New York enrollment
- 30 clinicians in this Medicare group
Commack, NY 11725
- Reassigned Medicare billing, New York enrollment
- 265 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 514 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10065 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 10065
NEW YORK, NY 10065
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 Jimmitti Teysir's NPI number?
The NPI number for Jimmitti Teysir is 1629605233. It was assigned to this individual provider in the NPPES registry on March 24, 2020.
Where is Jimmitti Teysir located?
Jimmitti Teysir practices at 300 E 66th St, New York, NY 10065. The listed phone number is (646) 888-4346.
What is Jimmitti Teysir's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Jimmitti Teysir enrolled in Medicare?
Yes. Jimmitti Teysir 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 Jimmitti Teysir's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jimmitti Teysir reassigns Medicare benefits to 4 organizations: Memorial Developmental Chemo Group (New York, NY), Memorial Infectious Disease Group (New York, NY), Mskcc Regional Network (Commack, NY) and Memorial Solid Tumor Group (New York, NY). 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 Jimmitti Teysir'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 Jimmitti Teysir was last updated on June 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Jimmitti Teysir, MD · NPI 1629605233
Medical Oncology physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 24, 2020.
## Identity
- **NPI:** 1629605233 (Entity type: Individual)
- **Enumerated:** March 24, 2020
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** 324325 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 E 66TH ST, New York, NY 10065-6800
- **Phone:** (646) 888-4346 · **Fax:** (617) 724-7441
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Memorial Developmental Chemo Group (NPI 1912978487, New York, NY); Memorial Infectious Disease Group (NPI 1619948189, New York, NY); Mskcc Regional Network (NPI 1740251297, Commack, NY); Memorial Solid Tumor Group (NPI 1699746172, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 2020
## Record status
- **NPPES last updated:** June 5, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1629605233) · Data from the CMS NPPES public registry.