Joseph Demarco
NPI 1861933665 · Physician Assistant · Buffalo, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Demarco is a Physician Assistant provider in Buffalo, NY (NPI 1861933665).
Provider details
- NPI number
- 1861933665
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 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
87 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 87 | $115 |
Typical Medicare-allowed amounts for these services range $115–$115 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Venetoclaxbrand: Venclexta | 56 | 13 |
| Acalabrutinib Maleatebrand: Calquence | 55 | 11 |
| Acyclovir | 49 | 18 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 27 | — |
| Prednisone | 25 | — |
| Zanubrutinibbrand: Brukinsa | 24 | — |
| Levofloxacin | 22 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-13
- Last updated
- 2021-01-07
- Certified
- 2021-01-07
Frequently asked questions
- What is Joseph Demarco's NPI number?
- Joseph Demarco's National Provider Identifier (NPI) is 1861933665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Demarco's specialty?
- Joseph Demarco is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joseph Demarco located?
- Joseph Demarco's practice location on file with NPPES is Elm and Carlton Streets, Buffalo, NY 14263-0001.
- What is Joseph Demarco's phone number?
- The practice phone number listed in the NPPES registry for Joseph Demarco is (716) 845-2300.
- Does Joseph Demarco accept Medicare?
- Joseph Demarco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Demarco's NPI active?
- Yes — Joseph Demarco's NPI (1861933665) is active in the NPPES registry as of the last update on 2021-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.