Robert Ludwig, MD
Internal Medicine Physician · Foxboro, MA
Robert Ludwig, MD is an internal medicine physician with a practice address in Foxboro, Massachusetts, and NPI 1558368480, issued on Jul 7, 2005. Check the license (Massachusetts 222836, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert Ludwig
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 222836 MA
Self-reported in NPPES; status is on the state search - Practice location
- 20 Patriot PL, Foxboro, MA 02035
- Phone
- (508) 718-4050
- Enumerated
- Jul 7, 2005
- Record last updated
- Nov 1, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 2084180 MA
- Medicare enrollment
- Enrolled (PECOS I20040921001057); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2001
- 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 20 Patriot PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison Hayes, PTAPhysical Therapy Assistant1720617343
- Sadia Hussain, MDInternal Medicine Physician1457537177
- Rania Husseini, M.D.Internal Medicine Physician1528015310
- Alan Kaul, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1891752317
- Stuart Klein, MDInternal Medicine Physician1275744633
- Amy Leonard, ATCAthletic Trainer1104236629
Verify Robert Ludwig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 222836Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average internal medicine physician in 2024
4,703 Medicare Part D claims for 423 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 214 claims were for opioids.
Most prescribed
- Atorvastatin Calcium427 claims
- Amlodipine Besylate269 claims
- Lisinopril241 claims
- Omeprazole186 claims
- Levothyroxine Sodium161 claims
- Hydrochlorothiazide153 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.
Bills Medicare through one group practice
- Brigham And Womens Physicians Organization IncFoxborough, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Ludwig among 6,825 internal medicine physician records in Massachusetts
Robert Ludwig, MD 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
- Graduated2001 · median 2004 among the 4,103 with a school on file
- Record last updated2019 · 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).
8 internal medicine physician records list a practice address in Foxboro
They are 8 of the 305 NPPES records with a practice address in Foxboro, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Foxboro → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Laila Akhund, M.D.Foxborough, MA 020351437155181
- Danielle Brook, M.D.Foxborough, MA 020351245265651
- Lauren De Leon, MDFoxborough, MA 020351205154523
- David Faling, MDFoxborough, MA 020351558312892
- James Robert Green, M.D.Foxboro, MA 020351497792196
- Nelofer Humayon, MDFoxboro, MA 020351861611089
- Sadia Hussain, MDFoxboro, MA 020351457537177
- Rania Husseini, M.D.Foxboro, MA 020351528015310
Common questions
What is Robert Ludwig, MD's NPI number?
Robert Ludwig, MD's National Provider Identifier (NPI) is 1558368480, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Ludwig, MD located?
The NPPES record lists a practice address at 20 Patriot PL, Foxboro, MA, 02035. Phone: (508) 718-4050. Providers update this record themselves, so call before visiting.
How can I verify Robert Ludwig, MD's license?
NPPES lists Massachusetts license number 222836, 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 Robert Ludwig, MD prescribe under Medicare Part D?
In 2024, Robert Ludwig, MD had 4,703 Medicare Part D claims for 423 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.