John Janikowski, DO
NPI 1326172685 · Family Medicine Physician · A.p.o., CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Janikowski, DO is a Family Medicine Physician provider in A.p.o., CA (NPI 1326172685).
Provider details
- NPI number
- 1326172685
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 1064 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
364 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 | 232 | $88 |
| Administration of Influenza Virus VaccineG0008 | 36 | $32 |
| Admn Sarscov2 Vacc 1 Dose90480 | 28 | $45 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 28 | $136 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $128 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 89 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 175 | 48 |
| Amlodipine Besylate | 156 | 44 |
| Lisinopril | 155 | 38 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 150 | 20 |
| Atorvastatin Calcium | 135 | 38 |
| Metformin Hcl | 107 | 30 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Janikowski's NPI number?
- John Janikowski's National Provider Identifier (NPI) is 1326172685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Janikowski's specialty?
- John Janikowski is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Janikowski located?
- John Janikowski's practice location on file with NPPES is Bldg 603 Ocean Road, A.p.o., CA 96555.
- What is John Janikowski's phone number?
- The practice phone number listed in the NPPES registry for John Janikowski is (805) 355-2223.
- Does John Janikowski accept Medicare?
- John Janikowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Janikowski's NPI active?
- Yes — John Janikowski's NPI (1326172685) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.