Najmul Hasan Siddiqui, M.D.
Family Medicine Physician · Aurora, CO
Najmul Hasan Siddiqui, M.D. is a family medicine physician with a practice address in Aurora, Colorado, and NPI 1558527580, issued on Jul 30, 2008. Check the license (Colorado 50278, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Najmul Hasan Siddiqui
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 50278 CO
5786 NE
Self-reported in NPPES; status is on the state search - Practice location
- 2400 S Peoria St, Aurora, CO 80014
- Phone
- (720) 524-1550
- Enumerated
- Jul 30, 2008
- Record last updated
- Oct 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (720) 524-1551
- Medicaid ID
- 40135063 CO
- Medicare enrollment
- Enrolled (PECOS I20180803001546); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 2400 S Peoria St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Salome Agbim, ND, CNS, APRN BCClinical Nurse Specialist1528038353
- Jamie Baldwin, PAMedical Physician Assistant1306129697
- Melissa Cardenas, NPGerontology Nurse Practitioner1790096238
- Karlee Chapman, NPFamily Nurse Practitioner1013247808
- Mark Grimm, MSWClinical Social Worker1194941997
- Kathy McLaughlan, ARNPAdult Health Nurse Practitioner1609032184
Verify Najmul Hasan Siddiqui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 50278Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average family medicine physician in 2024
600 Medicare Part D claims for 206 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 39 claims were for opioids.
Most prescribed
- Furosemide45 claims
- Pantoprazole Sodium35 claims
- Metoprolol Succinate27 claims
- Potassium Chloride25 claims
- Eliquis24 claims
- Prednisone24 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: $458.27
5 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 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 2 group practices
- Indiana University Health Ball Memorial Physicians IncMuncie, IN
- IU Health Medical Group LLCIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Najmul Hasan Siddiqui among 3,563 family medicine physician records in Colorado
Najmul Hasan Siddiqui, M.D. is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 38% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2005 · median 2008 among the 2,077 with a school on file
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
220 family medicine physician records list a practice address in Aurora
They are 220 of the 17,400 NPPES records with a practice address in Aurora, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Aurora → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Steven Chae, MDAurora, CO 800141104930528
- Timothy Colander, MDAurora, CO 800141407822075
- John Draper, MDAurora, CO 800141174541817
- Dale Kliner, M.D.Aurora, CO 800141508812025
- Matthew Lewis, MDAurora, CO 800141790751360
- Robert Maiocco, M.D.Aurora, CO 800141306895578
- John McCaulie, MDAurora, CO 800141497718043
- Jarmila Pauckova, MDAurora, CO 800141588771232
Common questions
What is Najmul Hasan Siddiqui, M.D.'s NPI number?
Najmul Hasan Siddiqui, M.D.'s National Provider Identifier (NPI) is 1558527580, issued on Jul 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Najmul Hasan Siddiqui, M.D. located?
The NPPES record lists a practice address at 2400 S Peoria St, Aurora, CO, 80014. Phone: (720) 524-1550. Providers update this record themselves, so call before visiting.
How can I verify Najmul Hasan Siddiqui, M.D.'s license?
NPPES lists Colorado license number 50278, 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 Najmul Hasan Siddiqui, M.D. prescribe under Medicare Part D?
In 2024, Najmul Hasan Siddiqui, M.D. had 600 Medicare Part D claims for 206 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.