Jennifer Kostacos, M.D.
NPI 1023375573 · Internal Medicine Physician · Horsham, PA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Kostacos, M.D. is a Internal Medicine Physician provider in Horsham, PA (NPI 1023375573).
Provider details
- NPI number
- 1023375573
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD073793 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 19 |
| Losartan Potassium | 15 |
| Alendronate Sodium | 12 |
| Amlodipine Besylate | 12 |
| Levothyroxine Sodium | 12 |
| Dulaglutidebrand: Trulicity | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$219 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-20
- Last updated
- 2022-09-22
- Certified
- 2022-09-22
Frequently asked questions
- What is Jennifer Kostacos's NPI number?
- Jennifer Kostacos's National Provider Identifier (NPI) is 1023375573, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Kostacos's specialty?
- Jennifer Kostacos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Kostacos located?
- Jennifer Kostacos's practice location on file with NPPES is 3 Village Rd Ste 101, Horsham, PA 19044-3819.
- What is Jennifer Kostacos's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Kostacos is (267) 207-3100.
- Does Jennifer Kostacos accept Medicare?
- Jennifer Kostacos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Kostacos's NPI active?
- Yes — Jennifer Kostacos's NPI (1023375573) is active in the NPPES registry as of the last update on 2022-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.