Mark Robert Drews, MD
Internal Medicine Physician · Waltham, MA
Mark Robert Drews, MD is an internal medicine physician with a practice address in Waltham, Massachusetts, and NPI 1184693616, issued on Mar 16, 2006. Check the license (Massachusetts 73118, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark Robert Drews
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 73118 MA
Self-reported in NPPES; status is on the state search - Practice location
- 564 Main St, Waltham, MA 02452
- Phone
- (781) 693-3800
- Enumerated
- Mar 16, 2006
- Record last updated
- Oct 12, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (781) 693-5514
- Medicare enrollment
- Enrolled (PECOS I20050428000288); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1988
- Entity
- Type 1 · individual
Also registered at 564 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ilana AmbrogiFamily Medicine Physician1720346737
- Dominique Auger, DPTPhysical Therapist1063067916
- Jessica Bonchi, DPTPhysical Therapist1639695653
- Lori Caddoo, MSPTPhysical Therapist1275608259
- Margaret Duddy, APRNFamily Nurse Practitioner1528342193
- Dayana Escobar, DDSGeneral Practice Dentistry1386866556
Verify Mark Robert Drews in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 73118Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% more Medicare Part D claims than the average internal medicine physician in 2024
5,414 Medicare Part D claims for 324 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 121 claims were for opioids.
Most prescribed
- Atorvastatin Calcium269 claims
- Omeprazole243 claims
- Metformin Hcl235 claims
- Amlodipine Besylate210 claims
- Lisinopril193 claims
- Trulicity175 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: $75.78
3 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
- Charles River Community Health, IncWaltham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
32 internal medicine physician records list a practice address in Waltham
They are 32 of the 2,111 NPPES records with a practice address in Waltham, and 6,825 internal medicine physician records in Massachusetts.
All 32 in Waltham → All 6,825 in Massachusetts → Every provider in Waltham →
Other internal medicine physician records in Massachusetts
- Nawal Aamir, MDWorcester, MA1588248926
- Nathan Abare, MDSpringfield, MA1386852747
- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Taimur AbbasiBoston, MA1841673522
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Maya Abdallah, MDBoston, MA1861854937
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is Mark Robert Drews, MD's NPI number?
Mark Robert Drews, MD's National Provider Identifier (NPI) is 1184693616, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Robert Drews, MD located?
The NPPES record lists a practice address at 564 Main St, Waltham, MA, 02452. Phone: (781) 693-3800. Providers update this record themselves, so call before visiting.
How can I verify Mark Robert Drews, MD's license?
NPPES lists Massachusetts license number 73118, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Robert Drews, MD prescribe under Medicare Part D?
In 2024, Mark Robert Drews, MD had 5,414 Medicare Part D claims for 324 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.