DR. ATASHI MANDAL M.D.
NPI 1104963214
Hospitalist in Newport Beach, CA
About Dr. Atashi Mandal M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ATASHI MANDAL M.D. (NPI 1104963214) is an individual hospitalist provider in Newport Beach, California, licensed in California (A80287) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2001).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 4
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
Dr. Atashi Mandal 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
4Medicare enrollment records show Atashi Mandal reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 250 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 840 clinicians in this Medicare group
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1396287082 (California)
- 13,921 clinicians in this Medicare group
Bishop, CA 93514
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1922198712 (California)
- 131 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
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Atashi Mandal's NPI number?
The NPI number for Atashi Mandal is 1104963214. It was assigned to this individual provider in the NPPES registry on January 30, 2007.
Where is Atashi Mandal located?
Atashi Mandal practices at 1 Hoag Dr, Newport Beach, CA 92663. The listed phone number is (949) 610-7245.
What is Atashi Mandal's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Atashi Mandal enrolled in Medicare?
Yes. Atashi Mandal 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 Atashi Mandal's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Atashi Mandal reassigns Medicare benefits to 4 organizations: The Regents Of The University Of California-Irvine (Orange, CA), Pih Health Physicians (Orange, CA), Southern California Permanente Medical Group (Anaheim, CA) and Northern Inyo Healthcare District (Bishop, CA). 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 Atashi Mandal'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 Atashi Mandal was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Atashi Mandal, M.D. · NPI 1104963214
Hospitalist physician in Newport Beach, California. Individual provider, active in the CMS NPPES registry since January 30, 2007.
## Identity
- **NPI:** 1104963214 (Entity type: Individual)
- **Enumerated:** January 30, 2007
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A80287 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 HOAG DR, Newport Beach, CA 92663-4162
- **Phone:** (949) 610-7245 · **Fax:** (657) 241-7720
## 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): The Regents Of The University Of California-Irvine (NPI 1154479723, Orange, CA); Pih Health Physicians (NPI 1083313589, Orange, CA); Southern California Permanente Medical Group (NPI 1952333460, Anaheim, CA); Northern Inyo Healthcare District (NPI 1669798815, Bishop, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, class of 2001
## Record status
- **NPPES last updated:** November 29, 2021
- **Other identifiers:** Other CB233919 (CA); Other P00727511 (CA); Other WA80287B (CA); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1104963214) · Data from the CMS NPPES public registry.