DR. MAHAK CHAUHAN M.D.
NPI 1497288419
Internal Medicine - Gastroenterology in Tucson, AZ
About Dr. Mahak Chauhan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MAHAK CHAUHAN M.D. (NPI 1497288419) is an individual gastroenterology provider in Tucson, Arizona, licensed in Arizona (77101) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with St Luke's Cornwall Hospital, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Mahak Chauhan 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 Reassignment
Medicare enrollment records show Mahak Chauhan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cornwall, NY 12518
- Reassigned Medicare billing, New York enrollment
- 79 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.
St Luke's Cornwall Hospital
Acute Care Hospitals · Newburgh, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85719 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.
TUCSON, AZ 85719
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 Mahak Chauhan's NPI number?
The NPI number for Mahak Chauhan is 1497288419. It was assigned to this individual provider in the NPPES registry on April 6, 2017.
Where is Mahak Chauhan located?
Mahak Chauhan practices at 1625 N Campbell Ave, Tucson, AZ 85719. The listed phone number is (520) 874-2800.
What is Mahak Chauhan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Mahak Chauhan enrolled in Medicare?
Yes. Mahak Chauhan 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 Mahak Chauhan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mahak Chauhan reassigns Medicare benefits to Hudson Vista Medical,pc (Cornwall, 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 Mahak Chauhan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mahak Chauhan accept?
Health plans from Blue Cross Blue Shield of Arizona list Mahak Chauhan 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.
Is Mahak Chauhan affiliated with any hospitals?
According to CMS data, Mahak Chauhan is affiliated with St Luke's Cornwall Hospital.
When was this NPI record last updated?
The NPPES record for Mahak Chauhan was last updated on July 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Mahak Chauhan, M.D. · NPI 1497288419
Gastroenterology physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since April 6, 2017.
## Identity
- **NPI:** 1497288419 (Entity type: Individual)
- **Enumerated:** April 6, 2017
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 77101 (Arizona)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1625 N CAMPBELL AVE, Tucson, AZ 85719-4330
- **Phone:** (520) 874-2800
## 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:** Hudson Vista Medical,pc (NPI 1659666840, Cornwall, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** July 2, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1497288419) · Data from the CMS NPPES public registry.