Jennifer Kostrinsky, D.O
NPI 1639181134 · Family Medicine Physician · La Mesa, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Kostrinsky, D.O is a Family Medicine Physician provider in La Mesa, CA (NPI 1639181134).
Provider details
- NPI number
- 1639181134
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Female
- Sole proprietor
- No
- License
- 20A8255 (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
184 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 | 148 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $137 |
Typical Medicare-allowed amounts for these services range $98–$137 (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 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 188 | 58 |
| Losartan Potassium | 160 | 50 |
| Lisinopril | 106 | 32 |
| Levothyroxine Sodium | 99 | 31 |
| Metoprolol Succinate | 96 | 32 |
| Gabapentin | 89 | 26 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-13
- Last updated
- 2019-05-14
Frequently asked questions
- What is Jennifer Kostrinsky's NPI number?
- Jennifer Kostrinsky's National Provider Identifier (NPI) is 1639181134, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Kostrinsky's specialty?
- Jennifer Kostrinsky is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Kostrinsky located?
- Jennifer Kostrinsky's practice location on file with NPPES is 5525 Grossmont Center Dr, La Mesa, CA 91942-3009.
- What is Jennifer Kostrinsky's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Kostrinsky is (858) 499-2600.
- Does Jennifer Kostrinsky accept Medicare?
- Jennifer Kostrinsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Kostrinsky's NPI active?
- Yes — Jennifer Kostrinsky's NPI (1639181134) is active in the NPPES registry as of the last update on 2019-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.