Frederick L. Ruberg, MD
Cardiovascular Disease Physician · Boston, MA
Frederick L. Ruberg, MD is a cardiovascular disease physician with a practice address in Boston, Massachusetts, and NPI 1437143070, issued on Sep 9, 2005. Check the license (Massachusetts 203028, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Frederick L. Ruberg
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 203028 MA
Self-reported in NPPES; status is on the state search - Practice location
- 732 Harrison Ave, Boston, MA 02118
- Phone
- (617) 638-7490
- Enumerated
- Sep 9, 2005
- Record last updated
- Apr 21, 2026
- Fax
- (617) 414-8742
- Medicaid IDs
- 1134166945 ME
110005543A MA
3109625 NH - Medicare enrollment
- Enrolled (PECOS I20040821000015); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 1998
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,080 in Massachusetts → Look up another NPI →
Also registered at 732 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maitri Acharekar, MDStudent in an Organized Health Care Education/Training Program1255020715
- Adeboye Adewoye, M.D.Medical Oncology Physician1316920838
- Eric Awtry, M.D.Cardiovascular Disease Physician1922084839
- Megan Barnett, RD, LDN, CNSCRegistered Dietitian1083919153
- Katy Bockstall, M.D.Cardiovascular Disease Physician1952676058
- John Bostrom, M.D.Cardiovascular Disease Physician1477087021
Verify Frederick L. Ruberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 203028Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
425 Medicare Part D claims for 55 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 68% of claims.
Most prescribed
- Vyndamax235 claims
- Metoprolol Succinate30 claims
- Jardiance29 claims
- Atorvastatin Calcium26 claims
- Furosemide18 claims
- Eliquis17 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: $80,000.00
1 payment: grant; the largest payer was Pfizer Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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
- Evans Medical Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Frederick L. Ruberg among 1,080 cardiovascular disease physician records in Massachusetts
Frederick L. Ruberg, MD is one of 1,080 cardiovascular disease 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, 83% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1998 · median 2001 among the 698 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
476 cardiovascular disease physician records list a practice address in Boston
They are 476 of the 41,865 NPPES records with a practice address in Boston, and 1,080 cardiovascular disease physician records in Massachusetts.
All 1,080 in Massachusetts → Every provider in Boston → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Eric Awtry, M.D.Boston, MA 021181922084839
- Gary Balady, M.D.Boston, MA 021181336123801
- Emelia Benjamin, MD, SCMBoston, MA 021181114902582
- Sheilah Bernard, MDBoston, MA 021181275518318
- Richard Cohen, M.D.Boston, MA 021181003892878
- Jill Downing, M.D.Boston, MA 021181720064264
- Robert Eberhardt, M.D.Boston, MA 021181912983909
- Noyan Gokce, M.D.Boston, MA 021181043296049
Common questions
What is Frederick L. Ruberg, MD's NPI number?
Frederick L. Ruberg, MD's National Provider Identifier (NPI) is 1437143070, issued on Sep 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Frederick L. Ruberg, MD located?
The NPPES record lists a practice address at 732 Harrison Ave, Boston, MA, 02118. Phone: (617) 638-7490. Providers update this record themselves, so call before visiting.
How can I verify Frederick L. Ruberg, MD's license?
NPPES lists Massachusetts license number 203028, 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 Frederick L. Ruberg, MD prescribe under Medicare Part D?
In 2024, Frederick L. Ruberg, MD had 425 Medicare Part D claims for 55 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.