Marcus Olsen, PA-C
NPI 1649906819 · Prescribing (Medical) Psychologist · San Jose, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Olsen, PA-C is a Prescribing (Medical) Psychologist provider in San Jose, CA (NPI 1649906819).
Provider details
- NPI number
- 1649906819
- Entity type
- Individual
- Primary specialty
- Prescribing (Medical) PsychologistBehavioral Health & Social Service Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
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
3 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
6,018 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) |
|---|---|---|
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 1,676 | $30 |
| Diagnostic Exam of Voice Box Using an Endoscope31525 | 1,661 | $150 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,341 | $103 |
| Removal of Impacted Ear Wax69210 | 736 | $15 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 335 | $126 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 206 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-07-28
- Last updated
- 2025-02-28
- Certified
- 2025-02-28
Frequently asked questions
- What is Marcus Olsen's NPI number?
- Marcus Olsen's National Provider Identifier (NPI) is 1649906819, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Olsen's specialty?
- Marcus Olsen is listed in the NPPES registry with a primary specialty of Prescribing (Medical) Psychologist (Behavioral Health & Social Service Providers).
- Where is Marcus Olsen located?
- Marcus Olsen's practice location on file with NPPES is 2039 Forest Ave Ste 201, San Jose, CA 95128-4815.
- What is Marcus Olsen's phone number?
- The practice phone number listed in the NPPES registry for Marcus Olsen is (408) 358-8090.
- Does Marcus Olsen accept Medicare?
- Marcus Olsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Olsen's NPI active?
- Yes — Marcus Olsen's NPI (1649906819) is active in the NPPES registry as of the last update on 2025-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.