SHARMEEN MAHMOOD
NPI 1639603236
Internal Medicine - Hematology & Oncology in Newport Beach, CA
About Sharmeen Mahmood NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHARMEEN MAHMOOD (NPI 1639603236) is an individual hematology & oncology provider in Newport Beach, California, licensed in California (18454) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS and is a graduate of Michigan State University College Of Osteopathic Medicine (2017).
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
Sharmeen Mahmood 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 Sharmeen Mahmood reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Newport Beach, CA 92663
- Reassigned Medicare billing, California enrollment
- 529 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 7
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 92663 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEWPORT BEACH, CA 92663
NEWPORT BEACH, CA 92663
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 Sharmeen Mahmood's NPI number?
The NPI number for Sharmeen Mahmood is 1639603236. It was assigned to this individual provider in the NPPES registry on April 20, 2017.
Where is Sharmeen Mahmood located?
Sharmeen Mahmood practices at 1 Hoag Dr Bldg 41, Newport Beach, CA 92663. The listed phone number is (949) 764-4060.
What is Sharmeen Mahmood's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Sharmeen Mahmood enrolled in Medicare?
Yes. Sharmeen Mahmood 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 Sharmeen Mahmood's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sharmeen Mahmood reassigns Medicare benefits to Hoag Clinic (Newport Beach, 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 Sharmeen Mahmood'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 Sharmeen Mahmood was last updated on July 17, 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.