Gregory J. Dilorenzo, D.O
Internal Medicine Physician · Broomfield, CO
Gregory J. Dilorenzo, D.O is an internal medicine physician with a practice address in Broomfield, Colorado, and NPI 1861404048, issued on Aug 13, 2006. Check the license (Colorado DR.0031860, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Dilorenzo
- Credential
- D.O
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- DR.0031860 CO
Self-reported in NPPES; status is on the state search - Practice location
- 340 E 1St Ave Ste 102, Broomfield, CO 80020
- Phone
- (720) 798-0170
- Enumerated
- Aug 13, 2006
- Record last updated
- Oct 11, 2024
- Fax
- (303) 862-7102
- Medicaid ID
- 01318609 CO
- Medicare enrollment
- Enrolled (PECOS I20050914000884); accepts Medicare assignment
- Medical or professional school
- Kansas City University Of Med & Biosciences, College Of Osteo Med, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 340 E 1St Ave Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory J. Dilorenzo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0031860Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average internal medicine physician in 2024
10,771 Medicare Part D claims for 1,136 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 186 claims were for opioids.
Most prescribed
- Atorvastatin Calcium645 claims
- Levothyroxine Sodium585 claims
- Lisinopril396 claims
- Losartan Potassium344 claims
- Omeprazole265 claims
- Amlodipine Besylate256 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: $97.89
4 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Onpoint Medical Group LLCBroomfield, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory J. Dilorenzo among 2,046 internal medicine physician records in Colorado
Gregory J. Dilorenzo, D.O is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1991 · median 2006 among the 1,090 with a school on file
- Record last updated2024 · 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 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Colorado
There are 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Broomfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alice Brunecky, M.D., DABMABroomfield, CO 800201902982291
- Shawna De Graff Roberson, D.O.Broomfield, CO 800201265823256
- Lawrence Janowski, MDBroomfield, CO 800201760564215
- Indira Mahalingam, M.D.Broomfield, CO 800201164583324
- Sander Orent, M.D.Broomfield, CO 800201154492635
- Sara Shahid, MDBroomfield, CO 800201972063956
- Radhika VemuriBroomfield, CO 800201649530551
- Amruta Pandit, MDWestminster, CO 800211366963779
Common questions
What is Gregory J. Dilorenzo, D.O's NPI number?
Gregory J. Dilorenzo, D.O's National Provider Identifier (NPI) is 1861404048, issued on Aug 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Dilorenzo, D.O located?
The NPPES record lists a practice address at 340 E 1St Ave Ste 102, Broomfield, CO, 80020. Phone: (720) 798-0170. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Dilorenzo, D.O's license?
NPPES lists Colorado license number DR.0031860, 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 Gregory J. Dilorenzo, D.O prescribe under Medicare Part D?
In 2024, Gregory J. Dilorenzo, D.O had 10,771 Medicare Part D claims for 1,136 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.