Mark Chalmers, MD
Family Medicine Physician · Mechanicville, NY
Mark Chalmers, MD is a family medicine physician with a practice address in Mechanicville, New York, and NPI 1033775283, issued on May 14, 2019. Check the license (New York 319607, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark Chalmers
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 319607 NY
Self-reported in NPPES; status is on the state search - Practice location
- 202 S Central Ave, Mechanicville, NY 12118
- Phone
- (518) 580-2099
- Enumerated
- May 14, 2019
- Record last updated
- Oct 31, 2022
- Medicare enrollment
- Enrolled (PECOS I20221205002575); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,417 in New York → Look up another NPI →
Also registered at 202 S Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Herdzik, MDFamily Medicine Physician1801857214
- Kathy McGuire, LMSWSocial Worker1548730039
- Stephen Sgambati, MDFamily Medicine Physician1366403172
- Grace Young, LCSWClinical Social Worker1548719693
Verify Mark Chalmers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 319607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average family medicine physician in 2024
5,287 Medicare Part D claims for 567 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 360 claims were for opioids.
Most prescribed
- Atorvastatin Calcium195 claims
- Hydrocodone-Acetaminophen171 claims
- Levothyroxine Sodium169 claims
- Lisinopril158 claims
- Alprazolam154 claims
- Omeprazole150 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $315.42
15 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Saratoga HospitalSaratoga Springs, NY · Acute Care Hospitals3 of 5 stars
- Select PT, OT And Slp Rehabilitation NY, PLLCHudson, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mark Chalmers among 6,417 family medicine physician records in New York
Mark Chalmers, MD is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 83% of them.
- NPI issued2019 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2019 · median 2007 among the 4,188 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 family medicine physician records list a practice address in Mechanicville
They are 8 of the 89 NPPES records with a practice address in Mechanicville, and 6,417 family medicine physician records in New York.
All 6,417 in New York → Every provider in Mechanicville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ingrid Bermudez, M.D.Mechanicville, NY 121181295824134
- Christine Carle, MDMechanicville, NY 121181013352228
- Katherine Herdzik, MDMechanicville, NY 121181801857214
- Theresa Parascandola, MDMechanicville, NY 121181013594266
- Jan Patterson, MDMechanicville, NY 121181881668523
- Marc Price, D.O.Mechanicville, NY 121181346445194
- Stephen Sgambati, MDMechanicville, NY 121181366403172
- Paul Perreault, MDMayfield, NY 121171487759270
Common questions
What is Mark Chalmers, MD's NPI number?
Mark Chalmers, MD's National Provider Identifier (NPI) is 1033775283, issued on May 14, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mark Chalmers, MD located?
The NPPES record lists a practice address at 202 S Central Ave, Mechanicville, NY, 12118. Phone: (518) 580-2099. Providers update this record themselves, so call before visiting.
How can I verify Mark Chalmers, MD's license?
NPPES lists New York license number 319607, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Chalmers, MD prescribe under Medicare Part D?
In 2024, Mark Chalmers, MD had 5,287 Medicare Part D claims for 567 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.