Alvin Parker, MD
NPI 1184151151 · Psychiatry Physician · Gardena, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alvin Parker, MD is a Psychiatry Physician provider in Gardena, CA (NPI 1184151151).
Provider details
- NPI number
- 1184151151
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2020-02321 (NC)
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
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
19 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 19 | $46 |
Typical Medicare-allowed amounts for these services range $46–$46 (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 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 148 | 40 |
| Buspirone Hcl | 122 | 27 |
| Duloxetine Hcl | 116 | 24 |
| Quetiapine Fumarate | 77 | 31 |
| Lurasidone Hcl | 76 | — |
| Escitalopram Oxalate | 70 | 23 |
| Olanzapine | 69 | 20 |
Practice location
Mailing address
Additional practice locations (2)
- 2100 Stantonsburg RdGreenville, NC 27834-2818Phone: (252) 847-4268
- 144 E Ferrell StSouth Hill, VA 23970Phone: (434) 584-5400Fax: (434) 584-4525
Registry dates
- Enumerated
- 2017-05-22
- Last updated
- 2026-05-13
- Certified
- 2026-05-13
Frequently asked questions
- What is Alvin Parker's NPI number?
- Alvin Parker's National Provider Identifier (NPI) is 1184151151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alvin Parker's specialty?
- Alvin Parker is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Alvin Parker located?
- Alvin Parker's practice location on file with NPPES is 1225 W 190th St Ste 280, Gardena, CA 90248-4305.
- What is Alvin Parker's phone number?
- The practice phone number listed in the NPPES registry for Alvin Parker is (877) 515-8113.
- Does Alvin Parker accept Medicare?
- Alvin Parker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alvin Parker's NPI active?
- Yes — Alvin Parker's NPI (1184151151) is active in the NPPES registry as of the last update on 2026-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.