Monica Mahajan, MD
Geriatric Medicine (Internal Medicine) Physician · Elk Grove Village, IL
Monica Mahajan, MD is a geriatric medicine (internal medicine) physician with a practice address in Elk Grove Village, Illinois, and NPI 1295708410, issued on Feb 8, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Monica Mahajan
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 235335 NY
Self-reported in NPPES; status is on the state search - Practice location
- 800 Biesterfield RD Ste 605, Elk Grove Village, IL 60007
- Phone
- (847) 364-6724
- Enumerated
- Feb 8, 2006
- Record last updated
- Mar 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 179 in Illinois → Look up another NPI →
Also registered at 800 Biesterfield RD Ste 605
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rowena Abasolo, A.P.N.Adult Health Nurse Practitioner1891099776
- Ryan Bartkus, M.D.Geriatric Medicine (Family Medicine) Physician1124318837
- Elizabeth Gerson, ANPAdult Health Nurse Practitioner1992749394
- Najma Lokhandwala, M.D.Geriatric Medicine (Internal Medicine) Physician1063603868
- Michael Peplow, D.O.Internal Medicine Physician1851607634
Verify Monica Mahajan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average geriatric medicine (internal medicine) physician in 2024
11,538 Medicare Part D claims for 431 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 133 claims were for opioids.
Most prescribed
- Atorvastatin Calcium651 claims
- Levothyroxine Sodium615 claims
- Furosemide532 claims
- Eliquis477 claims
- Omeprazole385 claims
- Donepezil Hcl343 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.
Monica Mahajan among 179 geriatric medicine (internal medicine) physician records in Illinois
Monica Mahajan, MD is one of 179 geriatric medicine (internal medicine) physician records with a practice address in Illinois. 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 8% of them.
- NPI issued2006 · 8% of these records are older, 40% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Illinois
There are 179 geriatric medicine (internal medicine) physician records in Illinois.
All 179 in Illinois → Every provider in Elk Grove Village → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Bhupinder Chhabra, M.D.Elk Grove Village, IL 600071023045788
- Ilya Fishman, M.D.Elk Grove Village, IL 600071346434578
- Ha Lee, MDElk Grove Village, IL 600071881624377
- Najma Lokhandwala, M.D.Elk Grove Village, IL 600071063603868
- Thomas Cozzi, MDArlington Heights, IL 600041013924489
- Veera Rao, MDCrystal Lake, IL 600141043217110
- Seong Chin, M.D.Glenview, IL 600251205941127
- Victoria Braund, MDGlenview, IL 600261831124544
Common questions
What is Monica Mahajan, MD's NPI number?
Monica Mahajan, MD's National Provider Identifier (NPI) is 1295708410, issued on Feb 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Monica Mahajan, MD located?
The NPPES record lists a practice address at 800 Biesterfield RD Ste 605, Elk Grove Village, IL, 60007. Phone: (847) 364-6724. Providers update this record themselves, so call before visiting.
How can I verify Monica Mahajan, MD's license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Monica Mahajan, MD prescribe under Medicare Part D?
In 2024, Monica Mahajan, MD had 11,538 Medicare Part D claims for 431 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.