Joshua Cosek
NPI 1871226837 · Physician Assistant · San Francisco, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joshua Cosek is a Physician Assistant provider in San Francisco, CA (NPI 1871226837).
Provider details
- NPI number
- 1871226837
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Physician Assistant363A00000X
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
28 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 28 | $173 |
Typical Medicare-allowed amounts for these services range $173–$173 (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 (2)
- 4700 Bahama LnPortage, MI 49002-9045Phone: (989) 820-5295
- 1234 Napier AveSaint Joseph, MI 49085-2112Phone: (269) 985-4632
Registry dates
- Enumerated
- 2022-07-07
- Last updated
- 2025-08-20
- Certified
- 2025-08-20
Frequently asked questions
- What is Joshua Cosek's NPI number?
- Joshua Cosek's National Provider Identifier (NPI) is 1871226837, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua Cosek's specialty?
- Joshua Cosek is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joshua Cosek located?
- Joshua Cosek's practice location on file with NPPES is 505 Parnassus Ave Ste M917, San Francisco, CA 94143-2204.
- What is Joshua Cosek's phone number?
- The practice phone number listed in the NPPES registry for Joshua Cosek is (415) 353-1116.
- Does Joshua Cosek accept Medicare?
- Joshua Cosek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joshua Cosek's NPI active?
- Yes — Joshua Cosek's NPI (1871226837) is active in the NPPES registry as of the last update on 2025-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.