Alphonso Nichols, MD
NPI 1003890666 · Psychiatry Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alphonso Nichols, MD is a Psychiatry Physician provider in San Diego, CA (NPI 1003890666).
Provider details
- NPI number
- 1003890666
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C177109 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
418 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) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 223 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 178 | $137 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 17 | $177 |
Typical Medicare-allowed amounts for these services range $74–$177 (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 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 144 | 27 |
| Trazodone Hcl | 111 | 28 |
| Quetiapine Fumarate | 110 | 20 |
| Buspirone Hcl | 89 | 18 |
| Bupropion Hclbrand: Bupropion Xl | 84 | 15 |
| Clonazepam | 78 | 12 |
| Escitalopram Oxalate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-06
- Last updated
- 2025-03-10
- Certified
- 2025-03-10
Frequently asked questions
- What is Alphonso Nichols's NPI number?
- Alphonso Nichols's National Provider Identifier (NPI) is 1003890666, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alphonso Nichols's specialty?
- Alphonso Nichols is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Alphonso Nichols located?
- Alphonso Nichols's practice location on file with NPPES is 9750 Miramar Rd Ste 200, San Diego, CA 92126-4562.
- What is Alphonso Nichols's phone number?
- The practice phone number listed in the NPPES registry for Alphonso Nichols is (858) 412-7362.
- Does Alphonso Nichols accept Medicare?
- Alphonso Nichols is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alphonso Nichols's NPI active?
- Yes — Alphonso Nichols's NPI (1003890666) is active in the NPPES registry as of the last update on 2025-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.