Gregory Mcfadden, MD
NPI 1780622431 · Psychiatry Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Mcfadden, MD is a Psychiatry Physician provider in La Jolla, CA (NPI 1780622431).
Provider details
- NPI number
- 1780622431
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G60437 (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
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
364 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 | 340 | $96 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 24 | $143 |
Typical Medicare-allowed amounts for these services range $96–$143 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Olanzapine | 267 | 21 |
| Lurasidone Hcl | 189 | 21 |
| Gabapentin | 180 | 21 |
| Quetiapine Fumarate | 163 | 20 |
| Escitalopram Oxalate | 138 | 17 |
| Aripiprazole | 131 | 17 |
| Sertraline Hcl | 128 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-03
- Last updated
- 2021-02-24
- Certified
- 2021-02-24
Frequently asked questions
- What is Gregory Mcfadden's NPI number?
- Gregory Mcfadden's National Provider Identifier (NPI) is 1780622431, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Mcfadden's specialty?
- Gregory Mcfadden is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Mcfadden located?
- Gregory Mcfadden's practice location on file with NPPES is 9850 Genesee Ave, La Jolla, CA 92037-1234.
- What is Gregory Mcfadden's phone number?
- The practice phone number listed in the NPPES registry for Gregory Mcfadden is (858) 558-2731.
- Does Gregory Mcfadden accept Medicare?
- Gregory Mcfadden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Mcfadden's NPI active?
- Yes — Gregory Mcfadden's NPI (1780622431) is active in the NPPES registry as of the last update on 2021-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.