Dr. Simon Leon Weitzman, MD

  • MA
  • Internist
NPI1013973775
Medicare services, 2020
144
Part D claims, 2024
12
Industry payments
$123
Affiliated sites
1
Medical group
1
Practice address
105 Chestnut St, Needham, MA 02492-2599
Practice phone
Call (781) 444-9080
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Simon Weitzman

Primary care practice · Needham, Massachusetts

See all 2 affiliations

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Dr. Simon Leon Weitzman is an internist in Massachusetts

Dr. Weitzman practices at Simon Weitzman in Needham, Massachusetts.

Dr. Weitzman's NPI, 1013973775, was assigned on April 21, 2006. Dr. Weitzman holds Massachusetts license 41758.

NPI and contact details
NPI enumeration date
April 21, 2006
NPI status
Active
Practice phone
(781) 444-9080
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Simon Leon Weitzman practices at Simon Weitzman in Needham, Massachusetts

Dr. Weitzman's primary practice is Simon Weitzman, at 105 Chestnut St, Needham, MA 02492-2599. The practice phone is (781) 444-9080.

  • Simon Weitzman
    105 Chestnut St, Needham, MA 02492-2599Phone(781) 444-9080

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Simon Leon Weitzman is affiliated with 1 site of care and 1 medical group

Dr. Weitzman's primary practice is Simon Weitzman in Needham, Massachusetts. Dmand AI also links Dr. Weitzman to 1 medical group, named with a free account.

Simon WeitzmanPrimary care practice · Needham, MassachusettsPrimary
1 medical groupName with a free account
See all 2 affiliations for Dr. Weitzman

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Dr. Simon Leon Weitzman's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weitzman practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Simon WeitzmanAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Simon Leon Weitzman is one of 5,528 internists in Massachusetts

Internal medicine is Dr. Weitzman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Weitzman is licensed in Massachusetts.

Specialties and state licenses

  • Internal medicine, MassachusettsPrimaryLicense 41758 · taxonomy 207R00000X

Internists near Dr. Weitzman

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Simon Leon Weitzman billed Medicare for 144 services in 2020

CMS data shows 144 Medicare services from Dr. Weitzman across 3 procedure codes in 2020. Medicare paid $7,698 for them. Every service was in an office.

Medicare services, 2020144
Paid by Medicare$7,698
Procedure codes3

Dr. Weitzman's Medicare services by type, 2019 to 2020

  • 2019
  • 2020
Office and hospital visits
2019: 3942020: 12568%
Surgery
2019: 1252020: 1985%
Tests and treatments
2019: 882020: 0100%
Other services
2019: 752020: 0100%

Dr. Weitzman compared with the Massachusetts median for internists, 2020

  • Dr. Weitzman
  • Massachusetts median
Medicare services
144vs 43167% below
Part D claims
12vs 40297% below

Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Weitzman's most billed Medicare procedure codes, 2020

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Weitzman

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weitzman and other internists in Massachusetts.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Simon Leon Weitzman's patients have a median age of 77

Across all payers, Dmand AI patient panel data puts Dr. Weitzman's median patient age at 77, with 67% women.

Dr. Weitzman's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 77

Patient panel by sex, all payers

  • Women67%
  • Men33%

Source: Dmand AI Patient Panel Data

Dr. Simon Leon Weitzman wrote 12 Medicare Part D claims in 2024

In 2024, Dr. Weitzman wrote 12 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $239 in total drug cost. In 2023, CMS named 13 claims across 1 drug.

Part D claims, 202412
Drugs named by CMS1
Total drug cost$239

Dr. Weitzman's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 132024: 128%

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Dr. Weitzman

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Simon Leon Weitzman received $123 in industry payments from 2016 to 2019

CMS Open Payments shows 6 general payments to Dr. Weitzman from 5 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $39.

General payments to Dr. Weitzman by program year, 2016 to 2019

Companies that paid Dr. Weitzman the most, 2016 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Weitzman

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Simon Leon Weitzman's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Simon Leon Weitzman

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Simon Leon Weitzman's NPI number?

Dr. Simon Leon Weitzman's NPI number is 1013973775. It was assigned on April 21, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Simon Leon Weitzman?

Dr. Simon Leon Weitzman is an internist in Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Simon Leon Weitzman practice?

Dr. Weitzman practices at 105 Chestnut St, Needham, MA 02492-2599. Dr. Weitzman's primary practice is Simon Weitzman in Needham, Massachusetts. Dmand AI also links Dr. Weitzman to 1 medical group.

What is Dr. Simon Leon Weitzman's office phone number?

The practice phone on file for Dr. Weitzman is (781) 444-9080.

What is Dr. Simon Leon Weitzman's medical license number?

Dr. Weitzman holds Massachusetts license 41758.

Does Dr. Simon Leon Weitzman accept Medicare?

Yes. CMS data shows Dr. Weitzman billed Medicare for 144 services in 2020.

What services does Dr. Simon Leon Weitzman bill to Medicare?

In 2020, Dr. Weitzman's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: heart and blood vessels (36415).

What drugs does Dr. Simon Leon Weitzman prescribe most?

In 2024 Medicare Part D data, Dr. Weitzman's most prescribed drugs by claims were Omeprazole.

Has Dr. Simon Leon Weitzman received payments from drug or device companies?

CMS Open Payments shows $123 in general payments to Dr. Weitzman from 5 companies from 2016 to 2019. The largest total came from Pfizer Inc.

How long has Dr. Simon Leon Weitzman been practicing?

Dr. Weitzman's NPI was assigned in 2006.

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