Natarajan Ravendhran, M.D.
Gastroenterology Physician · Catonsville, MD
Natarajan Ravendhran, M.D. is a gastroenterology physician with a practice address in Catonsville, Maryland, and NPI 1821071069, issued on Nov 22, 2005. Check the license (Maryland D19648, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Natarajan Ravendhran
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- D19648 MD
Self-reported in NPPES; status is on the state search - Practice location
- 700 Geipe RD, Catonsville, MD 21228
- Phone
- (410) 247-7500
- Enumerated
- Nov 22, 2005
- Record last updated
- Aug 8, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (410) 247-4227
- Medicaid ID
- 256751200 MD
- Medicare enrollment
- Enrolled (PECOS I20100128000432); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Also registered at 700 Geipe RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thomas Abernathy, M.D.Gastroenterology Physician1538105697
- Muhammad Afzal, M.D.Gastroenterology Physician1578561833
- Andrew Averbach, M.D.Surgery Physician1598832990
- Allen Banegura, M.D.Gastroenterology Physician1780895854
- Jane Brannon, P.T.Physical Therapist1982652590
- Amanda Costabile, P.T.Physical Therapist1467419424
Verify Natarajan Ravendhran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D19648Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average gastroenterology physician in 2024
465 Medicare Part D claims for 145 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Ursodiol70 claims
- Omeprazole62 claims
- Pantoprazole Sodium35 claims
- Vemlidy31 claims
- Spironolactone26 claims
- Famotidine23 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: $55,124.77
131 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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
- Johns Hopkins UniversityBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Natarajan Ravendhran among 505 gastroenterology physician records in Maryland
Natarajan Ravendhran, M.D. is one of 505 gastroenterology physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1973 · median 2002 among the 344 with a school on file
- Record last updated2014 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 gastroenterology physician records list a practice address in Catonsville
They are 11 of the 1,023 NPPES records with a practice address in Catonsville, and 505 gastroenterology physician records in Maryland.
All 505 in Maryland → Every provider in Catonsville → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Thomas Abernathy, M.D.Catonsville, MD 212281538105697
- Muhammad Afzal, M.D.Catonsville, MD 212281578561833
- Allen Banegura, M.D.Catonsville, MD 212281780895854
- Christopher Kim, M.D.Catonsville, MD 212281922006931
- Ghita Moussaide, M.D.Catonsville, MD 212281649535667
- Justin Rosemore, D.O.Catonsville, MD 212281861491425
- Louis Salas, M.D.Catonsville, MD 212281164420154
- Neeraj Sardana, M.D.Catonsville, MD 212281679783021
Common questions
What is Natarajan Ravendhran, M.D.'s NPI number?
Natarajan Ravendhran, M.D.'s National Provider Identifier (NPI) is 1821071069, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Natarajan Ravendhran, M.D. located?
The NPPES record lists a practice address at 700 Geipe RD, Catonsville, MD, 21228. Phone: (410) 247-7500. Providers update this record themselves, so call before visiting.
How can I verify Natarajan Ravendhran, M.D.'s license?
NPPES lists Maryland license number D19648, 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 Natarajan Ravendhran, M.D. prescribe under Medicare Part D?
In 2024, Natarajan Ravendhran, M.D. had 465 Medicare Part D claims for 145 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.