NPPES file of Aug 9, 2026

Rebecca Suzanne Ratnam, M.D.

Hospitalist Physician · Denver, CO

Rebecca Suzanne Ratnam, M.D. is a hospitalist physician with a practice address in Denver, Colorado, and NPI 1619295805, issued on May 12, 2010. Check the license (Colorado 48848, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619295805
Name
Rebecca Suzanne Ratnam
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
48848 CO
Self-reported in NPPES; status is on the state search
Practice location
1835 N Franklin St, Denver, CO 80218
Phone
(303) 866-8444
Enumerated
May 12, 2010
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(303) 866-8446
Medicare enrollment
Enrolled (PECOS I20111004000643); accepts Medicare assignment
Medical or professional school
University Of Miami, Lm Miller School Of Medicine, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1835 N Franklin St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kristen Coleman, PA-CPhysician Assistant1396994760
  2. Kathleen Doyle, MDObstetrics & Gynecology Physician1184768988
  3. Christopher Juels, MDEmergency Medicine Physician1740306372

Verify Rebecca Suzanne Ratnam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 48848
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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23% more Medicare Part D claims than the average hospitalist physician in 2024

639 Medicare Part D claims for 211 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 37 claims were for opioids.

  1. Rebecca Ratnam639
  2. Specialty average521

Most prescribed

  1. Furosemide50 claims
  2. Potassium Chloride34 claims
  3. Hydrocodone-Acetaminophen24 claims
  4. Metoprolol Tartrate23 claims
  5. Atorvastatin Calcium21 claims
  6. Prednisone21 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupSan Diego, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rebecca Suzanne Ratnam among 806 hospitalist physician records in Colorado

Rebecca Suzanne Ratnam, M.D. is one of 806 hospitalist physician records with a practice address in Colorado. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 38% of them.

  • NPI issued2010 · 38% of these records are older, 58% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2006 · median 2012 among the 622 with a school on file
  • Record last updated2021 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Colorado

There are 806 hospitalist physician records in Colorado.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Diogo Bauleth, MDDenver, CO 802181265404685
  2. Rosalie Chang, MDDenver, CO 802181417929738
  3. Christy Chaudhuri, MDDenver, CO 802181669414165
  4. Hunaif Dar, MDDenver, CO 802181598790610
  5. Ramesh Devanesan, MDDenver, CO 802181124039805
  6. Michelle Klaus, MDDenver, CO 802181114080389
  7. Julie McClanahan, MDDenver, CO 802181568419794
  8. Aram Neuschatz, MDDenver, CO 802181811969199

Common questions

What is Rebecca Suzanne Ratnam, M.D.'s NPI number?

Rebecca Suzanne Ratnam, M.D.'s National Provider Identifier (NPI) is 1619295805, issued on May 12, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Rebecca Suzanne Ratnam, M.D. located?

The NPPES record lists a practice address at 1835 N Franklin St, Denver, CO, 80218. Phone: (303) 866-8444. Providers update this record themselves, so call before visiting.

How can I verify Rebecca Suzanne Ratnam, M.D.'s license?

NPPES lists Colorado license number 48848, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Rebecca Suzanne Ratnam, M.D. prescribe under Medicare Part D?

In 2024, Rebecca Suzanne Ratnam, M.D. had 639 Medicare Part D claims for 211 beneficiaries; the average among hospitalist physician prescribers was 521. 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.