Sandra Johnson-Gamlin, PHD
NPI 1265656516 · Psychologist · Detroit, MI
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandra Johnson-Gamlin, PHD is a Psychologist provider in Detroit, MI (NPI 1265656516).
Provider details
- NPI number
- 1265656516
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 6301006837 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
318 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, 1 Hour90837 | 228 | $152 |
| Psychiatric Diagnostic Evaluation90791 | 72 | $168 |
| Psychotherapy, 45 Minutes90834 | 18 | $103 |
Typical Medicare-allowed amounts for these services range $103–$168 (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
Additional practice locations (1)
- 6960 Orchard Lake RdSuite 100West Bloomfield, MI 48322-4515Phone: (248) 626-1500Fax: (248) 626-1551
Registry dates
- Enumerated
- 2007-04-11
- Last updated
- 2025-12-02
- Certified
- 2025-12-02
Frequently asked questions
- What is Sandra Johnson-Gamlin's NPI number?
- Sandra Johnson-Gamlin's National Provider Identifier (NPI) is 1265656516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Johnson-Gamlin's specialty?
- Sandra Johnson-Gamlin is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Sandra Johnson-Gamlin located?
- Sandra Johnson-Gamlin's practice location on file with NPPES is 1001 Woodward Ave Fl 5, Detroit, MI 48226.
- What is Sandra Johnson-Gamlin's phone number?
- The practice phone number listed in the NPPES registry for Sandra Johnson-Gamlin is (313) 739-7836.
- Does Sandra Johnson-Gamlin accept Medicare?
- Sandra Johnson-Gamlin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandra Johnson-Gamlin's NPI active?
- Yes — Sandra Johnson-Gamlin's NPI (1265656516) is active in the NPPES registry as of the last update on 2025-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.