John Gambin, MD
NPI 1588622955 · Neurology Physician · Eureka, CA
John Gambin, MD is a Neurology Physician provider in Eureka, CA (NPI 1588622955).
Provider details
- NPI number
- 1588622955
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A24766 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
28 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Sleep Study in Sleep Lab (6 Years Or Older)95810 | 15 | $115 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 13 | $130 |
Typical Medicare-allowed amounts for these services range $115–$130 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-03
- Last updated
- 2010-02-23
Frequently asked questions
- What is John Gambin's NPI number?
- John Gambin's National Provider Identifier (NPI) is 1588622955, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gambin's specialty?
- John Gambin is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is John Gambin located?
- John Gambin's practice location on file with NPPES is 2828 Oneil Ln, Eureka, CA 95503-4870.
- What is John Gambin's phone number?
- The practice phone number listed in the NPPES registry for John Gambin is (707) 443-9385.
- Is John Gambin's NPI active?
- Yes — John Gambin's NPI (1588622955) is active in the NPPES registry as of the last update on 2010-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.