Nathaniel Kastan, MD, PHD
Student in an Organized Health Care Education/Training Program · Baltimore, MD
Nathaniel Kastan, MD, PHD is a student in an organized health care education/training program with a practice address in Baltimore, Maryland, and NPI 1093404295, issued on May 3, 2023. Check the license with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Kastan
- Credential
- MD, PHD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 4940 Eastern Ave, Baltimore, MD 21224
- Phone
- (410) 550-0100
- Enumerated
- May 3, 2023
- Record last updated
- May 3, 2023
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 5,632 in Maryland → Look up another NPI →
Also registered at 4940 Eastern Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Asma Abeer, PA-CMedical Physician Assistant1386356442
- Mona Abraham, MDStudent in an Organized Health Care Education/Training Program1245807395
- Sherifatu Abu, MDInternal Medicine Physician1093372922
Verify Nathaniel Kastan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
51 Medicare Part D claims for 17 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.
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.
Nathaniel Kastan among 5,632 student in an organized health care education/training program records in Maryland
Nathaniel Kastan, MD, PHD is one of 5,632 student in an organized health care education/training program records with a practice address in Maryland. 26% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 38% of them.
- NPI issued2023 · 38% of these records are older, 51% newer
- In a Medicare fileYes · 26% of these records are
- In the CMS Doctors and Clinicians fileNo · 2% of these records are
- Record last updated2023 · 24% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4,028 student in an organized health care education/training program records list a practice address in Baltimore
They are 4,028 of the 35,183 NPPES records with a practice address in Baltimore, and 5,632 student in an organized health care education/training program records in Maryland.
All 5,632 in Maryland → Every provider in Baltimore → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Anas AbdullahBaltimore, MD 212241184040917
- Andrea Baines, M.D., PH.D.Baltimore, MD 212241619266103
- Pari Basharat, MDBaltimore, MD 212241831530484
- Berny Bastiampillai, M.D.Baltimore, MD 212241588048920
- Stephanie Chen, MDBaltimore, MD 212241811239387
- Nida Corry, PHDBaltimore, MD 212241700052362
- Campbell CrossBaltimore, MD 212241629418389
- Eric DeinBaltimore, MD 212241447599501
Common questions
What is Nathaniel Kastan, MD, PHD's NPI number?
Nathaniel Kastan, MD, PHD's National Provider Identifier (NPI) is 1093404295, issued on May 3, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Kastan, MD, PHD located?
The NPPES record lists a practice address at 4940 Eastern Ave, Baltimore, MD, 21224. Phone: (410) 550-0100. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Kastan, MD, PHD's license?
Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Nathaniel Kastan, MD, PHD prescribe under Medicare Part D?
In 2024, Nathaniel Kastan, MD, PHD had 51 Medicare Part D claims for 17 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.