Dr. Jonathan Mark Letko, DO
- Part D claims, 2026
- 11
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 7785 North State Street, Lowville, NY 13367
- Practice phone
- Call (315) 376-5200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Letko's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jonathan Mark Letko is a general practice physician in Lowville, New York
Dr. Letko practices at Lewis County General Hospital in Lowville, New York, part of Lewis County.
Dr. Letko's NPI, 1750038246, was assigned on March 4, 2022. Dr. Letko holds Virginia license 0102208037.
- NPI
- 1750038246NPI Registry (opens in a new tab)
- NPI enumeration date
- March 4, 2022
- NPI status
- Active
- Practice phone
- (315) 376-5200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Jonathan Mark Letko practices at Lewis County General Hospital in Lowville, New York
Dr. Letko's primary practice is Lewis County General Hospital, at 7785 North State Street, Lowville, NY 13367 in Lewis County. The practice phone is (315) 376-5200.
- Lewis County General Hospital7785 North State Street, Lowville, NY 13367 · Lewis CountyPhone(315) 376-5200
Source: Dmand AI Affiliation Data
Dr. Jonathan Mark Letko is affiliated with 3 sites of care
Dr. Letko's primary practice is Lewis County General Hospital in Lowville, New York, part of Lewis County. Dmand AI also links Dr. Letko to 1 home health agency and 1 hospice, 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. Jonathan Mark Letko's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Letko practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lewis County General Hospital | Available with a free account |
| +2 more affiliated sites | 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 Lewis County and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathan Mark Letko is one of 397 general practice physicians in New York
General practice is Dr. Letko's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Letko is licensed in Virginia.
Specialties and state licenses
- General practice, VirginiaPrimary
General practice physicians near Dr. Letko
Counts of general practice physicians 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. Jonathan Mark Letko's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Letko's median patient age at 44, with 57% women.
Dr. Letko's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Jonathan Mark Letko wrote 11 Medicare Part D claims in 2026
In 2026, Dr. Letko wrote 11 Medicare Part D claims.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
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Sources for Dr. Jonathan Mark Letko'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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. Jonathan Mark Letko
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. Jonathan Mark Letko's NPI number?
Dr. Jonathan Mark Letko's NPI number is 1750038246. It was assigned on March 4, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Mark Letko?
Dr. Jonathan Mark Letko is a general practice physician in Lowville, New York. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Jonathan Mark Letko practice?
Dr. Letko practices at 7785 North State Street, Lowville, NY 13367. Dr. Letko's primary practice is Lewis County General Hospital in Lowville, New York, part of Lewis County. Dmand AI also links Dr. Letko to 1 home health agency and 1 hospice, and a free account names each one.
What is Dr. Jonathan Mark Letko's office phone number?
The practice phone on file for Dr. Letko is (315) 376-5200. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Jonathan Mark Letko's email address?
Dmand AI checks professional and personal email addresses for Dr. Letko through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Jonathan Mark Letko's medical license number?
Dr. Letko holds Virginia license 0102208037.
Which hospitals is Dr. Jonathan Mark Letko affiliated with?
Dr. Letko practices at Lewis County General Hospital in Lowville, New York.
How long has Dr. Jonathan Mark Letko been practicing?
Dr. Letko's NPI was assigned in 2022.
What EHR does Dr. Jonathan Mark Letko's practice use?
Dmand AI tracks the EHR system at Lewis County General Hospital and at 2 more affiliated sites. The vendor and product are available with a free Dmand AI account.
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