ALOK D GUPTA MD
NPI 1801836507
Internal Medicine - Gastroenterology in Williamsville, NY
About Alok D Gupta Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALOK D GUPTA MD (NPI 1801836507) is an individual gastroenterology provider in Williamsville, New York, licensed in New York (239786) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and is a graduate of Other (1987).
NPPES Registry Identity
Specialties & Licenses 2
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
Alok D Gupta 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
2Medicare enrollment records show Alok Gupta reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Williamsville, NY 14221
- Reassigned Medicare billing, New York enrollment
- 344 clinicians in this Medicare group
Niagara Falls, NY 14302
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1982659256 (New York)
- 156 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 10
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Kaleida Health
Acute Care Hospitals · Buffalo, NYSisters Of Charity Hospital
Acute Care Hospitals · Buffalo, NYKenmore Mercy Hospital
Acute Care Hospitals · Kenmore, NYBertrand Chaffee Hospital
Acute Care Hospitals · Springville, NYMercy Hospital Of Buffalo
Acute Care Hospitals · Buffalo, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14221 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Alok Gupta's NPI number?
The NPI number for Alok Gupta is 1801836507. It was assigned to this individual provider in the NPPES registry on June 8, 2006.
Where is Alok Gupta located?
Alok Gupta practices at 325 Essjay Rd Ste 170, Williamsville, NY 14221. The listed phone number is (716) 631-2517.
What is Alok Gupta's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Alok Gupta enrolled in Medicare?
Yes. Alok Gupta 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 Alok Gupta's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alok Gupta reassigns Medicare benefits to 2 organizations: Buffalo Medical Group, P.C. (Williamsville, NY) and Niagara Falls Memorial Medical Center (Niagara Falls, 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 Alok Gupta's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alok Gupta affiliated with any hospitals?
According to CMS data, Alok Gupta is affiliated with Kaleida Health, Sisters Of Charity Hospital, Kenmore Mercy Hospital, Bertrand Chaffee Hospital and Mercy Hospital Of Buffalo.
When was this NPI record last updated?
The NPPES record for Alok Gupta was last updated on December 13, 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.
# Alok D Gupta, MD · NPI 1801836507
Gastroenterology physician in Williamsville, New York. Individual provider, active in the CMS NPPES registry since June 8, 2006.
## Identity
- **NPI:** 1801836507 (Entity type: Individual)
- **Enumerated:** June 8, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 239786 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 325 ESSJAY RD STE 170, Williamsville, NY 14221-8243
- **Phone:** (716) 631-2517
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Buffalo Medical Group, P.C. (NPI 1881659506, Williamsville, NY); Niagara Falls Memorial Medical Center (NPI 1285717298, Niagara Falls, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1987
## Record status
- **NPPES last updated:** December 13, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1801836507) · Data from the CMS NPPES public registry.