David Mark Walzer, M.D.
Psychiatry Physician · Bryn Mawr, PA
David Mark Walzer, M.D. is a psychiatry physician with a practice address in Bryn Mawr, Pennsylvania, and NPI 1457482291, issued on Mar 7, 2007. Check the license (Pennsylvania MD023216E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- David Mark Walzer
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD023216E PA
Self-reported in NPPES; status is on the state search - Practice location
- 14 Elliott Ave, Bryn Mawr, PA 19010
- Phone
- (610) 525-6076
- Enumerated
- Mar 7, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050331000805); accepts Medicare assignment
- Medical or professional school
- The Hahneman Medical College And Hospital, 1978
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 14 Elliott Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Edelstein, PSY.D.Clinical Psychologist1750468039
- Arnold Feldman, M.D.Psychiatry Physician1124353669
- Leon Gellert, PSYDPsychologist1427754811
- Sandra Greenberg, ED.D., LCSW, BCDClinical Social Worker1881765949
- Donald Haupt, M.D.Psychiatry Physician1639246325
- Stephen Mechanick, M.D.Psychiatry Physician1538265814
Verify David Mark Walzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD023216ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average psychiatry physician in 2024
2,156 Medicare Part D claims for 149 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Lorazepam341 claims
- Clonazepam179 claims
- Quetiapine Fumarate147 claims
- Venlafaxine Hcl Er123 claims
- Lamotrigine121 claims
- Alprazolam86 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.
David Mark Walzer among 2,662 psychiatry physician records in Pennsylvania
David Mark Walzer, M.D. is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 46% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1978 · median 2003 among the 1,186 with a school on file
- Record last updated2007 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 psychiatry physician records list a practice address in Bryn Mawr
They are 63 of the 1,496 NPPES records with a practice address in Bryn Mawr, and 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in Bryn Mawr → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Angel Angelov, MDBryn Mawr, PA 190101861471757
- Stephen Baker, MDBryn Mawr, PA 190101235247180
- Marina Cooney, MDBryn Mawr, PA 190101982683207
- Stephen Mechanick, M.D.Bryn Mawr, PA 190101538265814
- David Nace, M.DBryn Mawr, PA 190101881699742
- Suzanne Reiss, M.D.Bryn Mawr, PA 190101851488365
- Thomas Riordan, M.D.Rosemont, PA 190101558479329
- Howard Rosen, MDBryn Mawr, PA 190101376587840
Common questions
What is David Mark Walzer, M.D.'s NPI number?
David Mark Walzer, M.D.'s National Provider Identifier (NPI) is 1457482291, issued on Mar 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David Mark Walzer, M.D. located?
The NPPES record lists a practice address at 14 Elliott Ave, Bryn Mawr, PA, 19010. Phone: (610) 525-6076. Providers update this record themselves, so call before visiting.
How can I verify David Mark Walzer, M.D.'s license?
NPPES lists Pennsylvania license number MD023216E, 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 David Mark Walzer, M.D. prescribe under Medicare Part D?
In 2024, David Mark Walzer, M.D. had 2,156 Medicare Part D claims for 149 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.