Raja E. Ayash, M.D.
Pulmonary Disease Physician · Baltimore, MD
Raja E. Ayash, M.D. is a pulmonary disease physician with a practice address in Baltimore, Maryland, and NPI 1285603498, issued on Mar 17, 2006. Check the license (Maryland D0020111, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Raja E. Ayash
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- D0020111 MD
Self-reported in NPPES; status is on the state search - Practice location
- 3333 N Calvert St, Baltimore, MD 21218
- Phone
- (410) 467-4470
- Enumerated
- Mar 17, 2006
- Record last updated
- Sep 20, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (410) 467-4877
- Medicaid ID
- 382591400 MD
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 342 in Maryland → Look up another NPI →
Also registered at 3333 N Calvert St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Arnold, P.A.-CPhysician Assistant1255351359
- Nancie Arsham, OTR LOccupational Therapist1316991300
- Nacime Salomao Barbachan Mansur, MD, PHDOrthopaedic Foot and Ankle Surgery Physician1417679192
- William Baugher, M.D.Orthopaedic Surgery Physician1689637522
- Abhijit Bhatia, MDGastroenterology Physician1144338658
- John Bielawski, ATC, MSMAthletic Trainer1780665380
Verify Raja E. Ayash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0020111Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
90 Medicare Part D claims, against an average of 1,425 among the 11,596 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.
Industry payments in 2024: $35.78
2 payments; by number, the most common kind was food and beverage; the largest payer was Atricure, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 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.
Raja E. Ayash among 342 pulmonary disease physician records in Maryland
Raja E. Ayash, M.D. is one of 342 pulmonary disease physician records with a practice address in Maryland. 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 16% of them.
- NPI issued2006 · 16% of these records are older, 42% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2012 · 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 207RP1001X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Maryland
There are 342 pulmonary disease physician records in Maryland.
All 342 in Maryland → Every provider in Baltimore → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Shahzad Hussain, M.DBaltimore, MD 212181366754327
- Edward Chen, M.D.Baltimore, MD 212241508816919
- Sonye Danoff, M.D.Baltimore, MD 212241720023534
- Michael Drummond, M.D.Baltimore, MD 212241689631541
- Christopher Earley, M.D.Baltimore, MD 212241003857384
- Bo Kim, M.D.Baltimore, MD 212241649294695
- Audrey Liu, M.D.Baltimore, MD 212241750324935
- Mark Liu, M.D.Baltimore, MD 212241790721488
Common questions
What is Raja E. Ayash, M.D.'s NPI number?
Raja E. Ayash, M.D.'s National Provider Identifier (NPI) is 1285603498, issued on Mar 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Raja E. Ayash, M.D. located?
The NPPES record lists a practice address at 3333 N Calvert St, Baltimore, MD, 21218. Phone: (410) 467-4470. Providers update this record themselves, so call before visiting.
How can I verify Raja E. Ayash, M.D.'s license?
NPPES lists Maryland license number D0020111, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Raja E. Ayash, M.D. prescribe under Medicare Part D?
In 2024, Raja E. Ayash, M.D. had 90 Medicare Part D claims; the average among pulmonary disease physician prescribers was 1,425. 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.