NATHANIEL GAMSKY MD
NPI 1164955043
Pain Medicine - Interventional Pain Medicine in Pleasant Hill, CA
About Nathaniel Gamsky Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHANIEL GAMSKY MD (NPI 1164955043) is an individual interventional pain medicine provider in Pleasant Hill, California, licensed in California (A162343) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (2017).
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
Nathaniel Gamsky 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 Nathaniel Gamsky reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Bass Medical Group
- 347 clinicians in this Medicare group
Santa Barbara, CA 93105
- Reassigned Medicare billing, California enrollment
- 38 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 26
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 94523 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PLEASANT HILL, CA 94523
PLEASANT HILL, CA 94523
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 Nathaniel Gamsky's NPI number?
The NPI number for Nathaniel Gamsky is 1164955043. It was assigned to this individual provider in the NPPES registry on April 6, 2017.
Where is Nathaniel Gamsky located?
Nathaniel Gamsky practices at 2250 Morello Ave, Pleasant Hill, CA 94523. The listed phone number is (925) 287-1256.
What is Nathaniel Gamsky's specialty?
The primary specialty registered for this NPI is Pain Medicine, specializing in Interventional Pain Medicine, with taxonomy code 208VP0014X.
Is Nathaniel Gamsky enrolled in Medicare?
Yes. Nathaniel Gamsky 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 Nathaniel Gamsky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathaniel Gamsky reassigns Medicare benefits to 2 organizations: Bay Area Surgical Specialists Inc A Medical Corporation (Walnut Creek, CA) and Hullander And Mozingo LP (Santa Barbara, 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 Nathaniel Gamsky'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 Nathaniel Gamsky was last updated on January 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.