Dr. Jan Mashman, MD
- Medicare services, 2016
- 181
- Part D claims, 2023
- 51
- Industry payments
- $700
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 69 Sand Pit Rd, Danbury, CT 06810-4004
- Practice phone
- Call (203) 748-2551
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Associated Neurologists
Medical specialty practice · Danbury, Connecticut
Find Dr. Mashman's professional email, personal email and mobile number
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Dr. Jan Mashman is a neurologist in Danbury, Connecticut
Dr. Mashman practices at Associated Neurologists in Danbury, Connecticut.
Dr. Mashman's NPI, 1639174618, was assigned on June 16, 2005. Dr. Mashman holds Connecticut license CT013908.
- NPI
- 1639174618NPI Registry (opens in a new tab)
- NPI enumeration date
- June 16, 2005
- NPI status
- Active
- Practice phone
- (203) 748-2551
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jan Mashman practices at Associated Neurologists in Danbury, Connecticut
Dr. Mashman's primary practice is Associated Neurologists, at 69 Sand Pit Rd, Danbury, CT 06810-4004. The practice phone is (203) 748-2551.
- Associated Neurologists69 Sand Pit Rd, Danbury, CT 06810-4004Phone(203) 748-2551
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jan Mashman is affiliated with 1 site of care and 1 medical group
Dr. Mashman's primary practice is Associated Neurologists in Danbury, Connecticut. Dmand AI also links Dr. Mashman to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Jan Mashman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mashman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Associated Neurologists | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jan Mashman is one of 302 neurologists in Connecticut
Neurology is Dr. Mashman's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Mashman is licensed in Connecticut.
Specialties and state licenses
- Neurology, ConnecticutPrimary
Neurologists near Dr. Mashman
Counts of neurologists 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. Jan Mashman billed Medicare for 181 services in 2016
CMS data shows 181 Medicare services from Dr. Mashman across 2 procedure codes in 2016, all of them office visits. Medicare paid $20,868 for them. Every service was in an office.
Dr. Mashman compared with the Connecticut median for neurologists, 2016
- Dr. Mashman
- Connecticut median
- Medicare services
- 181vs 22319% below
- Part D claims
- 51vs 24179% below
Medians across 293 neurologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Mashman's most billed Medicare procedure codes, 2016
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mashman and other neurologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jan Mashman wrote 51 Medicare Part D claims in 2023
In 2023, Dr. Mashman wrote 51 Medicare Part D claims. They cover 4 drugs, with $3,006 in total drug cost. In 2022, CMS named 374 claims across 20 drugs.
Dr. Mashman's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 3742023: 5186%
Drugs named by CMS: 4 in 2023, 20 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Jan Mashman received $700 in industry payments from 2016 to 2019
CMS Open Payments shows 36 general payments to Dr. Mashman from 9 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 76% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $226.
General payments to Dr. Mashman by program year, 2016 to 2019
General payments to Dr. Mashman by kind, 2016 to 2019
- Food and beverage$53076%
- Education$17024%
Companies that paid Dr. Mashman the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jan Mashman's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jan Mashman
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. Jan Mashman's NPI number?
Dr. Jan Mashman's NPI number is 1639174618. It was assigned on June 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jan Mashman?
Dr. Jan Mashman is a neurologist in Danbury, Connecticut. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Jan Mashman practice?
Dr. Mashman practices at 69 Sand Pit Rd, Danbury, CT 06810-4004. Dr. Mashman's primary practice is Associated Neurologists in Danbury, Connecticut. Dmand AI also links Dr. Mashman to 1 medical group.
What is Dr. Jan Mashman's office phone number?
The practice phone on file for Dr. Mashman is (203) 748-2551.
What is Dr. Jan Mashman's medical license number?
Dr. Mashman holds Connecticut license CT013908.
Does Dr. Jan Mashman accept Medicare?
Yes. CMS data shows Dr. Mashman billed Medicare for 181 services in 2016.
What services does Dr. Jan Mashman bill to Medicare?
In 2016, Dr. Mashman's most billed Medicare services were office visit, established patient (99215) and office visit, established patient (99214).
What drugs does Dr. Jan Mashman prescribe most?
In 2023 Medicare Part D data, Dr. Mashman's most prescribed drugs by claims were Lamotrigine, Amlodipine Besylate and Buspirone HCl.
Has Dr. Jan Mashman received payments from drug or device companies?
CMS Open Payments shows $700 in general payments to Dr. Mashman from 9 companies from 2016 to 2019. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. Jan Mashman been practicing?
Dr. Mashman's NPI was assigned in 2005.
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