Mark Joseph Del Rosario, MD
Hospitalist Physician · Littleton, CO
Mark Joseph Del Rosario, MD is a hospitalist physician with a practice address in Littleton, Colorado, and NPI 1205273927, issued on Jun 4, 2013. Check the license (Colorado DR.0057375, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Joseph Del Rosario
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- DR.0057375 CO
R74098 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 7700 S Broadway, Littleton, CO 80122
- Phone
- (303) 730-8900
- Enumerated
- Jun 4, 2013
- Record last updated
- Nov 30, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (303) 730-7755
- Medicare enrollment
- Enrolled (PECOS I20160831000058); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 2013
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 806 in Colorado → Look up another NPI →
Also registered at 7700 S Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carolyn Abman, MDObstetrics & Gynecology Physician1396824561
- Gleandy Adlaon Gott, NPNurse Practitioner1053538397
- Irfan Ali, D.O.Hospitalist Physician1649852419
- Stefen Ammon, MDEmergency Medicine Physician1730210733
- Jill Anderson, NNPCritical Care Neonatal Nurse Practitioner1720294622
- Tyler Anderson, PA-CPhysician Assistant1700470101
Verify Mark Joseph Del Rosario in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0057375Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average hospitalist physician in 2024
303 Medicare Part D claims for 114 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Cefuroxime19 claims
- Omeprazole16 claims
- Prednisone15 claims
- Darifenacin Er11 claims
- Levothyroxine Sodium11 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): 77.2 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).
Industry payments in 2024: $27.00
1 payment: compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Becton, Dickinson and Company. The 7,324 providers of this specialty with any payment received $494.84 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
- Portercare Adventist Health SystemDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Joseph Del Rosario among 806 hospitalist physician records in Colorado
Mark Joseph Del Rosario, MD 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 2013, is newer than 51% of them.
- NPI issued2013 · 51% of these records are older, 44% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2013 · median 2012 among the 622 with a school on file
- Record last updated2020 · 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.
All 806 in Colorado → Every provider in Littleton → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Irfan Ali, D.O.Littleton, CO 801221649852419
- Francis Del Rosario, M.D.Littleton, CO 801221295269314
- Jacqueline Ilunga, M.D.Littleton, CO 801221417290032
- Paul Judiscak, D.O.Littleton, CO 801221649705427
- Laura Kasher, MDLittleton, CO 801221881805794
- Shannon Mackay, DOLittleton, CO 801221235585548
- Nicholas Polise, D.O.Littleton, CO 801221235588021
- Paul Bennett, DOLone Tree, CO 801241750546495
Common questions
What is Mark Joseph Del Rosario, MD's NPI number?
Mark Joseph Del Rosario, MD's National Provider Identifier (NPI) is 1205273927, issued on Jun 4, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Mark Joseph Del Rosario, MD located?
The NPPES record lists a practice address at 7700 S Broadway, Littleton, CO, 80122. Phone: (303) 730-8900. Providers update this record themselves, so call before visiting.
How can I verify Mark Joseph Del Rosario, MD's license?
NPPES lists Colorado license number DR.0057375, 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 Mark Joseph Del Rosario, MD prescribe under Medicare Part D?
In 2024, Mark Joseph Del Rosario, MD had 303 Medicare Part D claims for 114 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Mark Joseph Del Rosario, MD's MIPS final score?
The 2023 MIPS final score is 77.2 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.