Zachary Mashaw, MD
NPI 1912499146 · Family Medicine Physician · Ogdensburg, NY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Mashaw, MD is a Family Medicine Physician provider in Ogdensburg, NY (NPI 1912499146).
Provider details
- NPI number
- 1912499146
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 304188 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
5,958 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,475 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,009 | $89 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 719 | $9 |
| Hemoglobin A1c Level83036 | 640 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 590 | $129 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 571 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 134 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 339 | 99 |
| Amlodipine Besylate | 277 | 77 |
| Omeprazole | 248 | 72 |
| Rosuvastatin Calcium | 247 | 72 |
| Losartan Potassium | 240 | 68 |
| Lisinopril | 215 | 61 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,327 across 66 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-06-04
- Last updated
- 2023-04-11
- Certified
- 2023-04-11
Frequently asked questions
- What is Zachary Mashaw's NPI number?
- Zachary Mashaw's National Provider Identifier (NPI) is 1912499146, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Mashaw's specialty?
- Zachary Mashaw is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Mashaw located?
- Zachary Mashaw's practice location on file with NPPES is 921 State St, Ogdensburg, NY 13669-3347.
- What is Zachary Mashaw's phone number?
- The practice phone number listed in the NPPES registry for Zachary Mashaw is (315) 393-9268.
- Does Zachary Mashaw accept Medicare?
- Zachary Mashaw is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Mashaw's NPI active?
- Yes — Zachary Mashaw's NPI (1912499146) is active in the NPPES registry as of the last update on 2023-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.