Caroline Hollnagel, PH.D.
NPI 1508190299 · Psychologist · Bangor, ME
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline Hollnagel, PH.D. is a Psychologist provider in Bangor, ME (NPI 1508190299).
Provider details
- NPI number
- 1508190299
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 23040 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
16 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
333 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 | 118 | $31 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 86 | $72 |
| Exam of Neurobehavioral Status, Each Additional Hour96121 | 41 | $63 |
| Exam of Neurobehavioral Status, First Hour96116 | 30 | $75 |
| Evaluation of Neuropsychological Test, First Hour96132 | 30 | $100 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 28 | $31 |
Practice location
Mailing address
Additional practice locations (2)
- 401 Parnassus AveApc 0984San Francisco, CA 94143-2211Phone: (415) 476-7000
- 401 Parnassus AveApc 0984San Francisco, CA 94143-2211Phone: (415) 476-7000
Registry dates
- Enumerated
- 2009-09-28
- Last updated
- 2018-10-26
Frequently asked questions
- What is Caroline Hollnagel's NPI number?
- Caroline Hollnagel's National Provider Identifier (NPI) is 1508190299, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline Hollnagel's specialty?
- Caroline Hollnagel is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Caroline Hollnagel located?
- Caroline Hollnagel's practice location on file with NPPES is 417 State St Ste 209, Bangor, ME 04401.
- What is Caroline Hollnagel's phone number?
- The practice phone number listed in the NPPES registry for Caroline Hollnagel is (207) 973-7000.
- Does Caroline Hollnagel accept Medicare?
- Caroline Hollnagel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline Hollnagel's NPI active?
- Yes — Caroline Hollnagel's NPI (1508190299) is active in the NPPES registry as of the last update on 2018-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.