Mark A. Glassner, MD
Family Medicine Physician · Newark, DE
Mark A. Glassner, MD is a family medicine physician with a practice address in Newark, Delaware, and NPI 1396746293, issued on Aug 2, 2005. Check the license (Delaware C10002162, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Mark A. Glassner
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C10002162 DE
Self-reported in NPPES; status is on the state search - Practice location
- 324 E Main St, Newark, DE 19711
- Phone
- (302) 369-2751
- Enumerated
- Aug 2, 2005
- Record last updated
- Aug 26, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (302) 396-9077
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 518 in Delaware → Look up another NPI →
Also registered at 324 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sheri Brown, FNP-CFamily Nurse Practitioner1588651962
- Gayle French, NPFamily Nurse Practitioner1447272307
- Seyedmehdi Jadali, MDSurgery Physician1184682890
- Clare Matis, FNP-BCFamily Nurse Practitioner1043659386
- Mallory Patino, PA-CMedical Physician Assistant1790206274
- Taylor Raum, PA-CPhysician Assistant1376190009
Verify Mark A. Glassner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C10002162Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average family medicine physician in 2024
1,951 Medicare Part D claims for 498 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium217 claims
- Levothyroxine Sodium117 claims
- Metformin Hcl111 claims
- Omeprazole85 claims
- Losartan Potassium65 claims
- Lisinopril60 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.
Mark A. Glassner among 518 family medicine physician records in Delaware
Mark A. Glassner, MD is one of 518 family medicine physician records with a practice address in Delaware. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2008 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
84 family medicine physician records list a practice address in Newark
They are 84 of the 4,662 NPPES records with a practice address in Newark, and 518 family medicine physician records in Delaware.
All 518 in Delaware → Every provider in Newark → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gary Beste, MDNewark, DE 197111588683619
- William Bilski, D. O.Newark, DE 197111619922598
- Beth Bilski, DONewark, DE 197111750328076
- Christine Horah, D.O.Newark, DE 197111760484018
- Judy Lim, MDNewark, DE 197111083667208
- Narinder Singh, MDNewark, DE 197111689666588
- Sameh Basta, M.DMiddletown, DE 197091922414978
- Robert Callahan, MDNewark, DE 197131962491779
Common questions
What is Mark A. Glassner, MD's NPI number?
Mark A. Glassner, MD's National Provider Identifier (NPI) is 1396746293, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Glassner, MD located?
The NPPES record lists a practice address at 324 E Main St, Newark, DE, 19711. Phone: (302) 369-2751. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Glassner, MD's license?
NPPES lists Delaware license number C10002162, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark A. Glassner, MD prescribe under Medicare Part D?
In 2024, Mark A. Glassner, MD had 1,951 Medicare Part D claims for 498 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.