Tamar Gefen, PHD
NPI 1770903353 · Clinical Psychologist · Chicago, IL
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tamar Gefen, PHD is a Clinical Psychologist provider in Chicago, IL (NPI 1770903353).
Provider details
- NPI number
- 1770903353
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 071.009672 (IL)
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
12 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
475 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) |
|---|---|---|
| Administration of Psychological Or Neuropsychological Test By Technician, Each Additional 30 Minutes96139 | 188 | $37 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 173 | $101 |
| Psychiatric Diagnostic Evaluation90791 | 38 | $180 |
| Evaluation of Neuropsychological Test, First Hour96132 | 38 | $135 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 38 | $36 |
Typical Medicare-allowed amounts for these services range $36–$180 (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
Registry dates
- Enumerated
- 2014-04-22
- Last updated
- 2017-12-01
Frequently asked questions
- What is Tamar Gefen's NPI number?
- Tamar Gefen's National Provider Identifier (NPI) is 1770903353, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tamar Gefen's specialty?
- Tamar Gefen is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Tamar Gefen located?
- Tamar Gefen's practice location on file with NPPES is 676 N Saint Clair St, Chicago, IL 60611-2927.
- What is Tamar Gefen's phone number?
- The practice phone number listed in the NPPES registry for Tamar Gefen is (312) 908-9339.
- Does Tamar Gefen accept Medicare?
- Tamar Gefen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tamar Gefen's NPI active?
- Yes — Tamar Gefen's NPI (1770903353) is active in the NPPES registry as of the last update on 2017-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.