Mark Benjamin Davidson, M.D.
Internal Medicine Physician · Webster, MA
Mark Benjamin Davidson, M.D. is an internal medicine physician with a practice address in Webster, Massachusetts, and NPI 1417948522, issued on Oct 31, 2005. Check the license (Massachusetts 218842, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark Benjamin Davidson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 218842 MA
Self-reported in NPPES; status is on the state search - Practice location
- 340 Thompson RD, Webster, MA 01570
- Phone
- (508) 943-0821
- Enumerated
- Oct 31, 2005
- Record last updated
- Jan 2, 2026
- Fax
- (508) 943-5209
- Medicare enrollment
- Enrolled (PECOS I20031122000082); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 340 Thompson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Benjamin Davidson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 218842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,557 Medicare Part D claims for 196 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 46 claims were for opioids.
Most prescribed
- Atorvastatin Calcium208 claims
- Lisinopril204 claims
- Simvastatin177 claims
- Amlodipine Besylate140 claims
- Levothyroxine Sodium78 claims
- Omeprazole74 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: $54.53
2 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. 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
- Umass Memorial Medical Group IncNorthborough, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Benjamin Davidson among 6,825 internal medicine physician records in Massachusetts
Mark Benjamin Davidson, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1998 · median 2004 among the 4,103 with a school on file
- Record last updated2026 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in Webster
They are 12 of the 190 NPPES records with a practice address in Webster, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Webster → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lindsey GirouxWebster, MA 015701619691045
- Piotr Grabias, M.D.Webster, MA 015701508847419
- Kenneth Guarnieri, M.D.Webster, MA 015701679547830
- Krzysztof Kacprzak, M.D.Webster, MA 015701952364523
- Dmitry Levenson, MDWebster, MA 015701588685671
- Thalia Madera, PAWebster, MA 015701942933254
- Gil Rohald, M.D.Webster, MA 015701740324730
- Beata Stancel-Grabias, M.D.Webster, MA 015701275514184
Common questions
What is Mark Benjamin Davidson, M.D.'s NPI number?
Mark Benjamin Davidson, M.D.'s National Provider Identifier (NPI) is 1417948522, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Benjamin Davidson, M.D. located?
The NPPES record lists a practice address at 340 Thompson RD, Webster, MA, 01570. Phone: (508) 943-0821. Providers update this record themselves, so call before visiting.
How can I verify Mark Benjamin Davidson, M.D.'s license?
NPPES lists Massachusetts license number 218842, 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 Benjamin Davidson, M.D. prescribe under Medicare Part D?
In 2024, Mark Benjamin Davidson, M.D. had 2,557 Medicare Part D claims for 196 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.