Nathaniel Gamsky, MD
NPI 1164955043 · Interventional Pain Medicine Physician · Pleasant Hill, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Gamsky, MD is a Interventional Pain Medicine Physician provider in Pleasant Hill, CA (NPI 1164955043).
Provider details
- NPI number
- 1164955043
- Entity type
- Individual
- Primary specialty
- Interventional Pain Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,913 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 712 | $152 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 263 | $18 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 199 | $109 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 132 | $196 |
| Injection of Trigger Points, 3 Or More Muscles20553 | 82 | $42 |
| Injection of Anesthetic Agent And/Or Steroid Into Other Nerve Or Branch64450 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 134 | 56 |
| Oxycodone Hcl | 41 | 14 |
| Gabapentin | 39 | 19 |
| Buprenorphine | 37 | 13 |
| Nortriptyline Hcl | 36 | — |
| Tramadol Hcl | 34 | 13 |
| Oxycodone Hcl/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,307 across 22 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-06
- Last updated
- 2025-01-03
- Certified
- 2025-01-03
Frequently asked questions
- What is Nathaniel Gamsky's NPI number?
- Nathaniel Gamsky's National Provider Identifier (NPI) is 1164955043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Gamsky's specialty?
- Nathaniel Gamsky is listed in the NPPES registry with a primary specialty of Interventional Pain Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathaniel Gamsky located?
- Nathaniel Gamsky's practice location on file with NPPES is 2250 Morello Ave, Pleasant Hill, CA 94523-1860.
- What is Nathaniel Gamsky's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Gamsky is (925) 287-1256.
- Does Nathaniel Gamsky accept Medicare?
- Nathaniel Gamsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Gamsky's NPI active?
- Yes — Nathaniel Gamsky's NPI (1164955043) is active in the NPPES registry as of the last update on 2025-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.