Evan Markessinis, PHYSICIAN ASSISTANT
NPI 1023505880 · Physician Assistant · Glens Falls, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Evan Markessinis, PHYSICIAN ASSISTANT is a Physician Assistant provider in Glens Falls, NY (NPI 1023505880).
Provider details
- NPI number
- 1023505880
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PHYSICIAN ASSISTANT
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
197 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 114 | $143 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 68 | $108 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 15 | $69 |
Typical Medicare-allowed amounts for these services range $69–$143 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-17
- Last updated
- 2022-03-08
- Certified
- 2022-03-08
Frequently asked questions
- What is Evan Markessinis's NPI number?
- Evan Markessinis's National Provider Identifier (NPI) is 1023505880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Evan Markessinis's specialty?
- Evan Markessinis is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Evan Markessinis located?
- Evan Markessinis's practice location on file with NPPES is 100 Park St, Glens Falls, NY 12801-4447.
- What is Evan Markessinis's phone number?
- The practice phone number listed in the NPPES registry for Evan Markessinis is (518) 926-1000.
- Does Evan Markessinis accept Medicare?
- Evan Markessinis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Evan Markessinis's NPI active?
- Yes — Evan Markessinis's NPI (1023505880) is active in the NPPES registry as of the last update on 2022-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.