John Kasawa, M.D.
NPI 1134230329 · Family Medicine Physician · El Cajon, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Kasawa, M.D. is a Family Medicine Physician provider in El Cajon, CA (NPI 1134230329).
Provider details
- NPI number
- 1134230329
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A79338 (CA)
Specialties & taxonomies
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
37 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 37 | $9 |
Typical Medicare-allowed amounts for these services range $9–$9 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 60 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 228 | 42 |
| Amlodipine Besylate | 222 | 36 |
| Metformin Hcl | 199 | 34 |
| Simvastatin | 190 | 25 |
| Atorvastatin Calcium | 131 | 29 |
| Gabapentin | 125 | 18 |
| Levothyroxine Sodium | 114 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Kasawa's NPI number?
- John Kasawa's National Provider Identifier (NPI) is 1134230329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Kasawa's specialty?
- John Kasawa is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Kasawa located?
- John Kasawa's practice location on file with NPPES is 807 S Mollison Ave Unit 31, El Cajon, CA 92020-6515.
- What is John Kasawa's phone number?
- The practice phone number listed in the NPPES registry for John Kasawa is (858) 349-8826.
- Does John Kasawa accept Medicare?
- John Kasawa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Kasawa's NPI active?
- Yes — John Kasawa's NPI (1134230329) 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.