Mark Brown, MD
Internal Medicine Physician · Phoenixville, PA
Mark Brown, MD is an internal medicine physician with a practice address in Phoenixville, Pennsylvania, and NPI 1467491050, issued on Jun 6, 2006. Check the license (Pennsylvania MD033335E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark Brown
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD033335E PA
Self-reported in NPPES; status is on the state search - Practice location
- 826 Main St, Phoenixville, PA 19460
- Phone
- (610) 933-8484
- Enumerated
- Jun 6, 2006
- Record last updated
- Feb 10, 2022
- Fax
- (610) 917-0320
- Medicaid ID
- 0010573760006 PA
- Medicare enrollment
- Enrolled (PECOS I20111222000064); accepts Medicare assignment
- Medical or professional school
- Hahnemann University College Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 826 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Liza Corkery, PA-CMedical Physician Assistant1881882843
- Laurence Cramer, D.O.Otolaryngology Physician1518058338
Verify Mark Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD033335ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average internal medicine physician in 2024
11,422 Medicare Part D claims for 959 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 218 claims were for opioids.
Most prescribed
- Atorvastatin Calcium966 claims
- Lisinopril583 claims
- Levothyroxine Sodium537 claims
- Amlodipine Besylate525 claims
- Rosuvastatin Calcium376 claims
- Bisoprolol-Hydrochlorothiazide342 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: $112.46
1 payment: food and beverage; the largest payer was Amgen 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 2 group practices
- Penn Medicine-PmaBala Cynwyd, PA
- Phoenix Rehabilitation And Health Services IncCranberry Twp, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Brown among 7,300 internal medicine physician records in Pennsylvania
Mark Brown, 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
- Graduated1983 · median 2008 among the 4,208 with a school on file
- Record last updated2022 · 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).
37 internal medicine physician records list a practice address in Phoenixville
They are 37 of the 886 NPPES records with a practice address in Phoenixville, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Phoenixville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Andrew Baskin, M.D.Phoenixville, PA 194601700146412
- Ira Cantor, M.DPhoenixville, PA 194601760425755
- Marion Childs, M.D.Phoenixville, PA 194601801892161
- Jacquline Diblasio, M.D.Phoenixville, PA 194601134131816
- Eric Holmboe, M.D.Phoenixville, PA 194601770751935
- Oladoye Kehinde, MDPhoenixville, PA 194601497727044
- William Mark, M.D.Phoenixville, PA 194601396955522
- Christopher Martin, MDPhoenixville, PA 194601376625418
Common questions
What is Mark Brown, MD's NPI number?
Mark Brown, MD's National Provider Identifier (NPI) is 1467491050, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Brown, MD located?
The NPPES record lists a practice address at 826 Main St, Phoenixville, PA, 19460. Phone: (610) 933-8484. Providers update this record themselves, so call before visiting.
How can I verify Mark Brown, MD's license?
NPPES lists Pennsylvania license number MD033335E, 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 Brown, MD prescribe under Medicare Part D?
In 2024, Mark Brown, MD had 11,422 Medicare Part D claims for 959 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.