Susan Peng Demarest, MD
Endocrinology, Diabetes & Metabolism Physician · Niskayuna, NY
Susan Peng Demarest, MD is an endocrinology, diabetes & metabolism physician with a practice address in Niskayuna, New York, and NPI 1558680504, issued on May 28, 2010. Check the license (New York 277624, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Susan Peng Demarest
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 277624 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2125 River RD Ste 303, Niskayuna, NY 12309
- Phone
- (518) 213-6910
- Enumerated
- May 28, 2010
- Record last updated
- Mar 13, 2026
- Fax
- (518) 213-6915
- Medicaid ID
- 04102383 NY
- Medicare enrollment
- Enrolled (PECOS I20150716001400); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 970 in New York → Look up another NPI →
Also registered at 2125 River RD Ste 303
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Dascher, RD, CDENutrition Education Nutritionist1588710271
- Michael O'Rourke, PA-CPhysician Assistant1851742332
Verify Susan Peng Demarest 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 277624Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
4,965 Medicare Part D claims for 588 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Ozempic534 claims
- Levothyroxine Sodium422 claims
- Lantus Solostar339 claims
- Metformin Hcl Er260 claims
- Jardiance239 claims
- Metformin Hcl198 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: $606.21
26 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Bills Medicare through one group practice
- Albany Medical CollegeAlbany, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan Peng Demarest among 970 endocrinology, diabetes & metabolism physician records in New York
Susan Peng Demarest, MD is one of 970 endocrinology, diabetes & metabolism physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 62% of them.
- NPI issued2010 · 62% of these records are older, 35% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2010 · median 2004 among the 694 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in New York
There are 970 endocrinology, diabetes & metabolism physician records in New York.
All 970 in New York → Every provider in Niskayuna → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Shannon Comley Sood, D.O.Schenectady, NY 123091902811615
- Philip Mika, M.D.Schenectady, NY 123091811910425
- Sandra Taccad-Reyes, M.D.Schenectady, NY 123091588679294
- James Desemone, M.D.Schenectady, NY 123081063414472
- Ayesha Cheema, MDKingston, NY 124011083617617
- Suchee Madhusudan, MDKingston, NY 124011841477346
- Jessie Block-Galarza, M.D.Albany, NY 122081255332573
- Nicole Chan, DOAlbany, NY 122081326668302
Common questions
What is Susan Peng Demarest, MD's NPI number?
Susan Peng Demarest, MD's National Provider Identifier (NPI) is 1558680504, issued on May 28, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Susan Peng Demarest, MD located?
The NPPES record lists a practice address at 2125 River RD Ste 303, Niskayuna, NY, 12309. Phone: (518) 213-6910. Providers update this record themselves, so call before visiting.
How can I verify Susan Peng Demarest, MD's license?
NPPES lists New York license number 277624, 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 Susan Peng Demarest, MD prescribe under Medicare Part D?
In 2024, Susan Peng Demarest, MD had 4,965 Medicare Part D claims for 588 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.