Ramaswamy I. Rangarajan, M.D.
Internal Medicine Physician · Randallstown, MD
Ramaswamy I. Rangarajan, M.D. is an internal medicine physician with a practice address in Randallstown, Maryland, and NPI 1841251576, issued on Mar 31, 2006. Check the license (Maryland D54288, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Ramaswamy I. Rangarajan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D54288 MD
Self-reported in NPPES; status is on the state search - Practice location
- 5401 Old Court RD, Randallstown, MD 21133
- Phone
- (410) 521-2200
- Enumerated
- Mar 31, 2006
- Record last updated
- Jul 13, 2026
- Medicare enrollment
- Enrolled (PECOS I20060926000517); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 5401 Old Court RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janet AdeolaInternal Medicine Physician1942908801
- Nkemdilim AdimorahFamily Nurse Practitioner1841941242
- Sofia Ahmadi, PA-CPhysician Assistant1467812917
- Rebecca Aiken, CRNPAcute Care Nurse Practitioner1548562861
- Prosperlyn AliehChild & Adolescent Psychiatric/Mental Health Registered Nurse1780314971
- Rana Alqusairi, MDHospitalist Physician1306306469
Verify Ramaswamy I. Rangarajan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D54288Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
328 Medicare Part D claims for 118 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Amlodipine Besylate17 claims
- Metoprolol Tartrate15 claims
- Prednisone15 claims
- Furosemide11 claims
- Gabapentin11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Emergency Medicine Associates P.A., P.C.Westminster, MD
- Northwest Hospital Center IncRandallstown, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ramaswamy I. Rangarajan among 3,904 internal medicine physician records in Maryland
Ramaswamy I. Rangarajan, M.D. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1992 · median 2003 among the 2,445 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 internal medicine physician records list a practice address in Randallstown
They are 26 of the 557 NPPES records with a practice address in Randallstown, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Randallstown → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ambalavanan Balasubramanian, MDRandallstown, MD 211331184799066
- Raynold Depestre, MDRandallstown, MD 211331831291285
- Avverahalli Harish, M.D.Randallstown, MD 211331295796316
- Mohammed Kiddugavu, MDRandallstown, MD 211331952446601
- Joginder Mehta, M.D.Randallstown, MD 211331992767453
- Joseph Nkwanyuo, M.D.Randallstown, MD 211331194805036
- Elvira Pasmanik, M.D.Randallstown, MD 211331316945652
- Trung Pham, M.D.Randallstown, MD 211331669491999
Common questions
What is Ramaswamy I. Rangarajan, M.D.'s NPI number?
Ramaswamy I. Rangarajan, M.D.'s National Provider Identifier (NPI) is 1841251576, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ramaswamy I. Rangarajan, M.D. located?
The NPPES record lists a practice address at 5401 Old Court RD, Randallstown, MD, 21133. Phone: (410) 521-2200. Providers update this record themselves, so call before visiting.
How can I verify Ramaswamy I. Rangarajan, M.D.'s license?
NPPES lists Maryland license number D54288, 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 Ramaswamy I. Rangarajan, M.D. prescribe under Medicare Part D?
In 2024, Ramaswamy I. Rangarajan, M.D. had 328 Medicare Part D claims for 118 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Ramaswamy I. Rangarajan, M.D.'s MIPS final score?
The 2023 MIPS final score is 84.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.