Mark Jay Mullen, MD
Internal Medicine Physician · Feasterville Trevose, PA
Mark Jay Mullen, MD is an internal medicine physician with a practice address in Feasterville Trevose, Pennsylvania, and NPI 1679581870, issued on Aug 3, 2006. Check the license (Pennsylvania MD0402071E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark Jay Mullen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD0402071E PA
Self-reported in NPPES; status is on the state search - Practice location
- 23 Bustleton Pike, Feasterville Trevose, PA 19053
- Phone
- (215) 464-0770
- Enumerated
- Aug 3, 2006
- Record last updated
- Jul 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (267) 579-0720
- Medicare enrollment
- Enrolled (PECOS I20111020000460); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1987
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 23 Bustleton Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Douglas Kimmel, D.O.Family Medicine Physician1891780631
- Neelima Kute, MDFamily Medicine Physician1407921281
- Jade Laycock, MDFamily Medicine Physician1598453094
- Phillip Liaw, MDInternal Medicine Physician1245248442
- Andrew Matthews, M.D.Internal Medicine Physician1699935957
Verify Mark Jay Mullen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD0402071ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,375 Medicare Part D claims for 419 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 194 claims were for opioids.
Most prescribed
- Atorvastatin Calcium439 claims
- Rosuvastatin Calcium374 claims
- Amlodipine Besylate283 claims
- Levothyroxine Sodium211 claims
- Metoprolol Succinate185 claims
- Eliquis154 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $114.40
6 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- HR Physician ServicesFeasterville Trevose, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Jay Mullen among 7,300 internal medicine physician records in Pennsylvania
Mark Jay Mullen, MD is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 64% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1987 · median 2008 among the 4,208 with a school on file
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 internal medicine physician records list a practice address in Feasterville Trevose
They are 6 of the 256 NPPES records with a practice address in Feasterville Trevose, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Feasterville Trevose → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Barbara Bix, MDFeasterville Trevose, PA 190531194749630
- Larisa Khalupsky, M.D.Feasterville Trevose, PA 190531841555711
- Phillip Liaw, MDFeasterville Trevose, PA 190531245248442
- Leonid Magidenko, MDFeasterville Trevose, PA 190531821052143
- Andrew Matthews, M.D.Feasterville Trevose, PA 190531699935957
- Antonia Sojan, M.D.Trevose, PA 190531356512230
- Luigi De Santis, MDLevittown, PA 190551619973674
- Robert Davis, CMALevittown, PA 190561972012714
Common questions
What is Mark Jay Mullen, MD's NPI number?
Mark Jay Mullen, MD's National Provider Identifier (NPI) is 1679581870, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Jay Mullen, MD located?
The NPPES record lists a practice address at 23 Bustleton Pike, Feasterville Trevose, PA, 19053. Phone: (215) 464-0770. Providers update this record themselves, so call before visiting.
How can I verify Mark Jay Mullen, MD's license?
NPPES lists Pennsylvania license number MD0402071E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Jay Mullen, MD prescribe under Medicare Part D?
In 2024, Mark Jay Mullen, MD had 7,375 Medicare Part D claims for 419 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.