Melanie Hayden Gephart, MD
NPI 1518125210 · Neurological Surgery Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melanie Hayden Gephart, MD is a Neurological Surgery Physician provider in Stanford, CA (NPI 1518125210).
Provider details
- NPI number
- 1518125210
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A105004 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 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
545 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 105 | $152 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 93 | $213 |
| Computer-Assisted Radiosurgery of Simple Growth of Brain, Each Additional Growth61797 | 88 | $223 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 42 | $164 |
| Computer-Assisted Radiosurgery of Simple Growth of Brain, First Growth61796 | 41 | $1,112 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-29
- Last updated
- 2024-04-26
- Certified
- 2024-04-26
Frequently asked questions
- What is Melanie Hayden Gephart's NPI number?
- Melanie Hayden Gephart's National Provider Identifier (NPI) is 1518125210, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melanie Hayden Gephart's specialty?
- Melanie Hayden Gephart is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Melanie Hayden Gephart located?
- Melanie Hayden Gephart's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Melanie Hayden Gephart's phone number?
- The practice phone number listed in the NPPES registry for Melanie Hayden Gephart is (650) 723-5575.
- Does Melanie Hayden Gephart accept Medicare?
- Melanie Hayden Gephart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melanie Hayden Gephart's NPI active?
- Yes — Melanie Hayden Gephart's NPI (1518125210) is active in the NPPES registry as of the last update on 2024-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.