David Aaron Hammer, M.D.
Neurology Physician · Philadelphia, PA
David Aaron Hammer, M.D. is a neurology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1811307507, issued on May 2, 2014. Check the license (Pennsylvania MD469935, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- David Aaron Hammer
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- MD469935 PA
M0218005 PA
262653 MA
Self-reported in NPPES; status is on the state search - Practice location
- 5401 Old York RD Ste 404, Philadelphia, PA 19141
- Phone
- (215) 456-7190
- Enumerated
- May 2, 2014
- Record last updated
- Jul 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (215) 456-7308
- Medicare enrollment
- Enrolled (PECOS I20200909000511); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 1,077 in Pennsylvania → Look up another NPI →
Also registered at 5401 Old York RD Ste 404
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gabriella GarciaNeurology Physician1467958066
- Mia KoNeurology Physician1942613369
- Ryna Then, M.D.Neurology Physician1427346303
Verify David Aaron Hammer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD469935Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average neurology physician in 2024
1,668 Medicare Part D claims for 212 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 18 claims were for opioids.
Most prescribed
- Levetiracetam296 claims
- Lacosamide145 claims
- Gabapentin123 claims
- Lamotrigine76 claims
- Phenobarbital49 claims
- Topiramate44 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: $827.02
29 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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
- Einstein Practice Plan IncPhila, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Aaron Hammer among 1,077 neurology physician records in Pennsylvania
David Aaron Hammer, M.D. is one of 1,077 neurology physician records with a practice address in Pennsylvania. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 67% of them.
- NPI issued2014 · 67% of these records are older, 29% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2014 · median 2007 among the 727 with a school on file
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Pennsylvania
There are 1,077 neurology physician records in Pennsylvania.
All 1,077 in Pennsylvania → Every provider in Philadelphia → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Amro Abdulsattar, M.DPhiladelphia, PA 191411316206667
- Richard Bennett, MDPhiladelphia, PA 191411861446700
- Christopher Bradley, M.D., PH.D.Philadelphia, PA 191411164580098
- Jonathan Dissin, MDPhiladelphia, PA 191411518927276
- Gabriella GarciaPhiladelphia, PA 191411467958066
- Gary Horowitz, DOPhiladelphia, PA 191411417925017
- Anahid Kabasakalian, MDPhiladelphia, PA 191411467671396
- Mia KoPhiladelphia, PA 191411942613369
Common questions
What is David Aaron Hammer, M.D.'s NPI number?
David Aaron Hammer, M.D.'s National Provider Identifier (NPI) is 1811307507, issued on May 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is David Aaron Hammer, M.D. located?
The NPPES record lists a practice address at 5401 Old York RD Ste 404, Philadelphia, PA, 19141. Phone: (215) 456-7190. Providers update this record themselves, so call before visiting.
How can I verify David Aaron Hammer, M.D.'s license?
NPPES lists Pennsylvania license number MD469935, 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 Aaron Hammer, M.D. prescribe under Medicare Part D?
In 2024, David Aaron Hammer, M.D. had 1,668 Medicare Part D claims for 212 beneficiaries; the average among neurology physician prescribers was 1,370. 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.