Gwendoline Dewitt, PHD
NPI 1316289739 · Clinical Psychologist · Crystal, MI
Gwendoline Dewitt, PHD is a Clinical Psychologist provider in Crystal, MI (NPI 1316289739).
Provider details
- NPI number
- 1316289739
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 6301018808 (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
13 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
477 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 | 401 | $144 |
| Psychiatric Diagnostic Evaluation90791 | 39 | $163 |
| Psychotherapy, 45 Minutes90834 | 37 | $94 |
Typical Medicare-allowed amounts for these services range $94–$163 (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)
- 115 E Main StStanton, MI 48888-9687Phone: (989) 831-9000
Registry dates
- Enumerated
- 2013-03-24
- Last updated
- 2026-04-30
- Certified
- 2026-04-30
Frequently asked questions
- What is Gwendoline Dewitt's NPI number?
- Gwendoline Dewitt's National Provider Identifier (NPI) is 1316289739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwendoline Dewitt's specialty?
- Gwendoline Dewitt is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Gwendoline Dewitt located?
- Gwendoline Dewitt's practice location on file with NPPES is 302 S Senator Rd, Crystal, MI 48818-9651.
- What is Gwendoline Dewitt's phone number?
- The practice phone number listed in the NPPES registry for Gwendoline Dewitt is (989) 831-9111.
- Is Gwendoline Dewitt's NPI active?
- Yes — Gwendoline Dewitt's NPI (1316289739) is active in the NPPES registry as of the last update on 2026-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.