Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1841243557 Individual Practitioner Male Practitioner

Dr. Jeffrey Alan Held , MD

Internal Medicine • Cambridge, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Jeffrey Held, MD is a certified Internal Medicine practicing in Cambridge, MA. With approximately 28 years of clinical experience since graduating from University Of Florida College Of Medicine in 1998, Dr. Held delivers high-quality medical care to the local community at 25 CARLETON ST # E23.

Dr. Held is affiliated with Massachusetts Institute Of Technology and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, follow-up hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

25 Carleton St # E23

Cambridge, MA 021421323

Telephone 6172589355
Fax 6172589355

Medicare Profile & Education

Medical School

University Of Florida College Of Medicine

Graduation Year

1998

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Cambridge, MA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
28 Yrs +5.4 yrs vs City Avg
City Avg: 22.6 Yrs
State Avg: 29.3 Yrs
Regional Practice Density
309 Specialists

Practicing in Cambridge, MA (7127 Statewide)

Telehealth Adoption Rate
23.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
60.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Held (28 Years) 28 Yrs
Cambridge Specialty Average (22.6 Years) 22.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
131 75 $206.45 $77.76
99238 Hospital discharge day management, 30 minutes or less
57 56 $194.00 $80.48

Medical Specialties & State Licenses

CMS Verified: 2026-05-19
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 290818

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License FL ME90446

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
110186935A (MA)
Medicaid State Provider ID
270056500 (FL)
Commercial Insurance / Payer ID Railroad Medicare
P00149250 (FL)
Commercial Insurance / Payer ID Medicare Ptan
S400848927 (MA)

Hospital & Practice Group Affiliations

Massachusetts Institute Of Technology

25 Carleton St, Cambridge, MA 021421323

Phone: 6172586896

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events
📍
Updated Practice Location May 19, 2026

Registered at 25 CARLETON ST # E23, CAMBRIDGE, MA 021421323 (Tel: 6172589355)

📍
Updated Business Mailing Address May 19, 2026

Registered at 25 CARLETON ST # E23, CAMBRIDGE, MA 021421323 (Tel: 6172589355)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 19, 2026

Internal Medicine (License #290818 in MA)

📍
Updated Practice Location September 20, 2022

Registered at 211 PARK ST, ATTLEBORO, MA 027033143 (Tel: 5082225200)

📍
Updated Business Mailing Address September 20, 2022

Registered at 211 PARK ST, ATTLEBORO, MA 027033143 (Tel: 5082225200)

NPI Profile Active April 09, 2014

NPI status registered as active in NPPES database

📍
Updated Practice Location April 09, 2014

Registered at 3231 MCMULLEN BOOTH RD, SAFETY HARBOR, FL 346956607 (Tel: 7277256526)

📍
Updated Business Mailing Address April 09, 2014

Registered at PO BOX 10744, CLEARWATER, FL 337570744 (Tel: 7275320002)

👤
Provider Name / Credentials Updated April 09, 2014

Recorded as JEFFREY HELD, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 09, 2014

Internal Medicine (License #ME90446 in FL)

🟢
Initial NPI Registration & Enumeration May 17, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1841243557
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 17, 2006
Last Update: May 19, 2026
Sole Proprietor: No

Mailing Address

25 Carleton St # E23

Cambridge, MA 021421323

Phone: 6172589355

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.