Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Kenneth F. Sperber, MD

Works at hospitals in Boston, MA · Milford, MA · Attleboro, MA … · Massachusetts, Rhode Island

Summary

Dr. Kenneth F. Sperber, MD is a family doctor at 440 E Central St, Franklin, MA 02038. Phone: (508) 298-1300. Accepts Medicare assignment. In 2024, Kenneth F. Sperber had 123 Original Medicare patients and 535 services. NPI 1154382562. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Kenneth F. Sperber, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kenneth F. Sperber accept Medicare assignment?
Yes. Medicare's clinician data says Kenneth F. Sperber accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kenneth F. Sperber see?
In 2024, CMS data shows 123 Original Medicare patients and 535 services for Kenneth F. Sperber. This counts Original Medicare only and measures volume, not quality.
What is Kenneth F. Sperber's NPI number?
1154382562. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kenneth F. Sperber, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients123
Services billed to Medicare535
Different services or procedures30
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)168 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)154 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)51 services
  4. Administration of influenza virus vaccine (G0008)24 services
  5. Hemoglobin a1c level (83036)18 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure74%
  • Diabetes33%
  • Arthritis33%
  • Chronic kidney disease33%
  • Depression30%

Hospitals where Kenneth F. Sperber works

Medicare's Facility Affiliation Data lists Kenneth F. Sperber at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
  • Milford Regional Medical CenterMilford, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220090
  • Sturdy Memorial HospitalAttleboro, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220008
  • The Miriam HospitalProvidence, RI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 410012

Practice locations

Addresses where Kenneth F. Sperber is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kenneth F. Sperber as a member of these groups (CMS data updated October 2, 2026).

  • UMass Memorial Medical Group Inc2,516 clinicians in the group
  • Milford Regional Physician Group, Inc.210 clinicians in the group

Specialties

Find other Family Practice doctors in Massachusetts →

Other family doctors in Franklin

Clinicians with the same Medicare primary specialty in Franklin, MA — not a recommendation.

All family doctors in Franklin →

Other clinicians in UMass Memorial Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1154382562
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians