Dr. Mark Dean Snyder, MD
- Medicare services, 2024
- 80
- Medicare patients, 2024
- 148
- Part D claims, 2017
- 82
- Hospital affiliations
- 5
- Industry payments
- $981
- Practice address
- 320 Pomfret Street, Putnam, CT 06260
- Practice phone
- Call (860) 928-6541
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Snyder's professional email, personal email and mobile number
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Dr. Mark Dean Snyder is an anesthesiologist in Putnam, Connecticut
Dr. Snyder practices at Day Kimball Hospital in Putnam, Connecticut, part of Day Kimball Health.
Dr. Snyder's NPI, 1790778587, was assigned on August 26, 2005. Dr. Snyder graduated from University of Kansas School of Med (KC/Wich/Sal) in 1985. Dr. Snyder holds Wisconsin license 51782.
- NPI
- 1790778587NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355417395
- NPI enumeration date
- August 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (860) 928-6541
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Dean Snyder practices at Day Kimball Hospital in Putnam, Connecticut
Dr. Snyder's primary practice is Day Kimball Hospital, at 320 Pomfret Street, Putnam, CT 06260 in Windham County. The practice phone is (860) 928-6541.
- Day Kimball Hospital320 Pomfret Street, Putnam, CT 06260 · Windham CountyPhone(860) 928-6541
Source: Dmand AI Affiliation Data
Dr. Mark Dean Snyder is affiliated with 5 sites of care and 8 medical groups
Dr. Snyder's primary practice is Day Kimball Hospital in Putnam, Connecticut, part of Day Kimball Health. Dr. Snyder is also affiliated with Mosaic Life Care at St. Joseph - Medical Center. The medical group on file is North American Partners in Anesthesia (NAPA). Dmand AI also links Dr. Snyder to 3 more hospitals and 7 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Dean Snyder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Snyder practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Day Kimball Hospital | Available with a free account |
| +4 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Day Kimball Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Dean Snyder is one of 654 anesthesiologists in Connecticut
Anesthesiology is Dr. Snyder's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Snyder's licenses on file in 4 states: Wisconsin, Connecticut, Kansas and Missouri.
Specialties and state licenses
- Anesthesiology, WisconsinPrimary
- Connecticut license
- Kansas license
- Pain medicine (anesthesiology), Missouri
Anesthesiologists near Dr. Snyder
Counts of anesthesiologists 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. Mark Dean Snyder billed Medicare for 80 services in 2024
CMS data shows 80 Medicare services from Dr. Snyder across 6 procedure codes in 2024, for 148 Medicare patients. Medicare paid $11,049 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Snyder's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 232024: 66187%
- Surgery
- 2023: 02024: 14
Dr. Snyder compared with the Connecticut median for anesthesiologists, 2024
- Dr. Snyder
- Connecticut median
- Medicare services
- 80vs 8910% below
- Medicare patients
- 148vs 1607% below
- Part D claims
- 82vs 263.2 times
Medians across 636 anesthesiologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Snyder's most billed Medicare procedure codes, 2024
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Dean Snyder treated 148 Medicare patients in 2024, average age 73
CMS counts 148 Medicare patients who saw Dr. Snyder in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.70, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Snyder's median patient age at 56, with 63% women.
Dr. Snyder's Medicare patients by age, 2024
Dr. Snyder's Medicare patients by sex, 2024
- Women7249%
- Men7651%
Chronic conditions among Dr. Snyder's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis52%
- Diabetes42%
- Mood disorders36%
- Anxiety34%
- Depression31%
- Chronic kidney disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Snyder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Dean Snyder wrote 82 Medicare Part D claims in 2017
In 2017, Dr. Snyder wrote 82 Medicare Part D claims. They cover 5 drugs, with $18,287 in total drug cost. In 2016, CMS named 143 claims across 10 drugs.
Dr. Snyder's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 1432017: 8243%
Drugs named by CMS: 5 in 2017, 10 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Mark Dean Snyder takes part in Medicare
Dr. Snyder accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark Dean Snyder received $981 in industry payments from 2016 to 2025
CMS Open Payments shows 27 general payments to Dr. Snyder from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 69% of the total. Edwards Lifesciences Corporation paid the most, $300.
General payments to Dr. Snyder by program year, 2016 to 2025
General payments to Dr. Snyder by kind, 2016 to 2025
- Food and beverage$67369%
- Honoraria$30031%
- Education$81%
Companies that paid Dr. Snyder the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Dean Snyder graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Snyder graduated from University of Kansas School of Med (KC/Wich/Sal) in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Dean Snyder'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 Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Mark Dean Snyder
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. Mark Dean Snyder's NPI number?
Dr. Mark Dean Snyder's NPI number is 1790778587. It was assigned on August 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Dean Snyder?
Dr. Mark Dean Snyder is an anesthesiologist in Putnam, Connecticut. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Mark Dean Snyder practice?
Dr. Snyder practices at 320 Pomfret Street, Putnam, CT 06260. Dr. Snyder's primary practice is Day Kimball Hospital in Putnam, Connecticut, part of Day Kimball Health. Dmand AI also links Dr. Snyder to 3 hospitals and 7 medical groups.
What is Dr. Mark Dean Snyder's office phone number?
The practice phone on file for Dr. Snyder is (860) 928-6541.
What is Dr. Mark Dean Snyder's medical license number?
Dr. Snyder holds Wisconsin license 51782, one of the licenses on file in 4 states.
Which states has Dr. Mark Dean Snyder been licensed in?
Dmand AI has state licenses on file for Dr. Snyder in Wisconsin, Connecticut, Kansas and Missouri.
Which hospitals is Dr. Mark Dean Snyder affiliated with?
Dr. Snyder practices at Day Kimball Hospital in Putnam, Connecticut. Dr. Snyder is also affiliated with Mosaic Life Care at St. Joseph - Medical Center. Dmand AI links Dr. Snyder to 3 more hospitals.
What medical group is Dr. Mark Dean Snyder part of?
Dr. Snyder is linked to North American Partners in Anesthesia (NAPA). Dmand AI links Dr. Snyder to 7 more medical groups.
Does Dr. Mark Dean Snyder accept Medicare?
Yes. CMS data shows Dr. Snyder billed Medicare for 80 services in 2024, and Dr. Snyder accepts Medicare assignment.
How many Medicare patients does Dr. Mark Dean Snyder see?
CMS counts 148 Medicare patients who saw Dr. Snyder in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Mark Dean Snyder bill to Medicare?
In 2024, Dr. Snyder's most billed Medicare services were anesthesia (00731), anesthesia (00790) and anesthesia (00811).
Where did Dr. Mark Dean Snyder go to medical school?
Dr. Snyder graduated from University of Kansas School of Med (KC/Wich/Sal) in 1985.
What drugs does Dr. Mark Dean Snyder prescribe most?
In 2017 Medicare Part D data, Dr. Snyder's most prescribed drugs by claims were Hydromorphone HCl, Methadone HCl and Oxycontin.
Has Dr. Mark Dean Snyder received payments from drug or device companies?
CMS Open Payments shows $981 in general payments to Dr. Snyder from 16 companies from 2016 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Mark Dean Snyder been practicing?
Dr. Snyder graduated from medical school in 1985, 41 years ago.
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