John Michalak, P.A.-C.
NPI 1922057934 · Medical Physician Assistant · Camarillo, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Michalak, P.A.-C. is a Medical Physician Assistant provider in Camarillo, CA (NPI 1922057934).
Provider details
- NPI number
- 1922057934
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.-C.
- Sex
- Male
- Sole proprietor
- No
- License
- PA16603 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
226 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 91 | $84 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 38 | $103 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 23 | $97 |
| X-Ray of Chest, 2 Views71046 | 19 | $31 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 19 | $113 |
| Automated Urinalysis Test81003 | 18 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 72 | 72 |
| Azithromycin | 53 | 52 |
| Ciprofloxacin Hcl | 49 | 46 |
| Cephalexin | 47 | 46 |
| Prednisone | 44 | 43 |
| Amoxicillin | 39 | 39 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 36 | 35 |
Practice location
Mailing address
Additional practice locations (1)
- 400 W Pueblo StSanta Barbara, CA 93105-4353Phone: (805) 682-7111
Registry dates
- Enumerated
- 2006-05-08
- Last updated
- 2024-09-25
- Certified
- 2024-09-25
Frequently asked questions
- What is John Michalak's NPI number?
- John Michalak's National Provider Identifier (NPI) is 1922057934, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Michalak's specialty?
- John Michalak is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Michalak located?
- John Michalak's practice location on file with NPPES is 1887 Baja Vista Way, Camarillo, CA 93010-9274.
- What is John Michalak's phone number?
- The practice phone number listed in the NPPES registry for John Michalak is (805) 340-0563.
- Does John Michalak accept Medicare?
- John Michalak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Michalak's NPI active?
- Yes — John Michalak's NPI (1922057934) is active in the NPPES registry as of the last update on 2024-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.