Dr. Jennifer Kostacos, MD
- Part D claims, 2024
- 297
- Hospital affiliations
- 2
- Industry payments
- $615
- State license
- 1
- Year NPI issued
- 2012
- Practice address
- 595 W State St, Doylestown, PA 18901
- Practice phone
- Call (215) 345-2321
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Penn Medicine Doylestown Health
Doylestown, Pennsylvania
Find Dr. Kostacos' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jennifer Kostacos is an internist in Doylestown, Pennsylvania
Dr. Kostacos practices at Penn Medicine Doylestown Health in Doylestown, Pennsylvania.
Dr. Kostacos' NPI, 1023375573, was assigned on April 20, 2012. Dr. Kostacos graduated from College of Physicians and Surgeons (California) in 1998. Dr. Kostacos holds Pennsylvania license MD073793.
- NPI
- 1023375573NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113230509
- NPI enumeration date
- April 20, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (215) 345-2321
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer Kostacos practices at Penn Medicine Doylestown Health in Doylestown, Pennsylvania
Dr. Kostacos' primary practice is Penn Medicine Doylestown Health, at 595 W State St, Doylestown, PA 18901 in Bucks County. The practice phone is (215) 345-2321.
- Penn Medicine Doylestown Health595 W State St, Doylestown, PA 18901 · Bucks CountyPhone(215) 345-2321
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jennifer Kostacos is affiliated with 3 sites of care
Dr. Kostacos' primary practice is Penn Medicine Doylestown Health in Doylestown, Pennsylvania. Dr. Kostacos is also affiliated with Doylestown Hospital. Dmand AI also links Dr. Kostacos to 1 more hospital, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jennifer Kostacos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kostacos practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Penn Medicine Doylestown Health | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jennifer Kostacos is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Kostacos' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kostacos is board certified in internal medicine by the American Board of Internal Medicine. Dr. Kostacos is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Kostacos
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jennifer Kostacos' patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Kostacos' median patient age at 60, with 78% women.
Dr. Kostacos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women78%
- Men20%
Source: Dmand AI Patient Panel Data
Dr. Jennifer Kostacos wrote 297 Medicare Part D claims in 2024
In 2024, Dr. Kostacos wrote 297 Medicare Part D claims for 27 patients. 91% of them were for generic drugs. CMS names the drug for 81 of them, across 6 drugs with 11 or more claims each, at $11,212 in total drug cost. In 2023, CMS named 14 claims across 1 drug.
Dr. Kostacos' Part D claims by kind of drug, 2024
- Generic271 claims91%
- Brand-name26 claims9%
Dr. Kostacos' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Kostacos' Part D claims, 2024
- Antibiotics9%26 of 297 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 142024: 81479%
Drugs named by CMS: 6 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Jennifer Kostacos takes part in Medicare
Dr. Kostacos accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jennifer Kostacos received $615 in industry payments from 2018 to 2025
CMS Open Payments shows 9 general payments to Dr. Kostacos from 6 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 84% of the total. Astellas Pharma US Inc paid the most, $310.
General payments to Dr. Kostacos by program year, 2018 to 2025
General payments to Dr. Kostacos by kind, 2018 to 2025
- Food and beverage$51584%
- Education$10016%
Companies that paid Dr. Kostacos the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jennifer Kostacos graduated from College of Physicians and Surgeons (California)
Dr. Kostacos graduated from College of Physicians and Surgeons (California) in 1998.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Jennifer Kostacos's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jennifer Kostacos
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jennifer Kostacos' NPI number?
Dr. Jennifer Kostacos' NPI number is 1023375573. It was assigned on April 20, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer Kostacos?
Dr. Jennifer Kostacos is an internist in Doylestown, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jennifer Kostacos practice?
Dr. Kostacos practices at 595 W State St, Doylestown, PA 18901. Dr. Kostacos' primary practice is Penn Medicine Doylestown Health in Doylestown, Pennsylvania. Dmand AI also links Dr. Kostacos to 1 hospital.
What is Dr. Jennifer Kostacos' office phone number?
The practice phone on file for Dr. Kostacos is (215) 345-2321.
What is Dr. Jennifer Kostacos' medical license number?
Dr. Kostacos holds Pennsylvania license MD073793.
Which hospitals is Dr. Jennifer Kostacos affiliated with?
Dr. Kostacos is affiliated with Doylestown Hospital. Dmand AI links Dr. Kostacos to 1 more hospital.
Does Dr. Jennifer Kostacos accept Medicare?
Yes. CMS lists Dr. Kostacos as accepting Medicare assignment.
Is Dr. Jennifer Kostacos board certified?
Yes. Dr. Kostacos is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Jennifer Kostacos go to medical school?
Dr. Kostacos graduated from College of Physicians and Surgeons (California) in 1998.
What drugs does Dr. Jennifer Kostacos prescribe most?
In 2024 Medicare Part D data, Dr. Kostacos' most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Alendronate Sodium.
Has Dr. Jennifer Kostacos received payments from drug or device companies?
CMS Open Payments shows $615 in general payments to Dr. Kostacos from 6 companies from 2018 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Jennifer Kostacos been practicing?
Dr. Kostacos graduated from medical school in 1998, 28 years ago.
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