Jack Vassar, PA-C
NPI 1750661633 · Physician Assistant · New York, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Vassar, PA-C is a Physician Assistant provider in New York, NY (NPI 1750661633).
Provider details
- NPI number
- 1750661633
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 014815 (NY)
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 tenure25% of score
14 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
1,135 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 | 403 | $121 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 357 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 239 | $9 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 91 | $13 |
| Diagnostic Exam of Bladder and Urethra Using an Endoscope52000 | 17 | $231 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 113 | 47 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 49 | 22 |
| Levofloxacin | 30 | 25 |
| Testosterone | 23 | — |
| Finasteride | 21 | — |
| Valacyclovir Hclbrand: Valacyclovir | 20 | — |
| Solifenacin Succinate | 17 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$283 across 13 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
- 2011-08-23
- Last updated
- 2014-11-13
Frequently asked questions
- What is Jack Vassar's NPI number?
- Jack Vassar's National Provider Identifier (NPI) is 1750661633, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Vassar's specialty?
- Jack Vassar is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jack Vassar located?
- Jack Vassar's practice location on file with NPPES is 425 W 59th St, New York, NY 10019-8022.
- What is Jack Vassar's phone number?
- The practice phone number listed in the NPPES registry for Jack Vassar is (212) 241-3919.
- Does Jack Vassar accept Medicare?
- Jack Vassar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Vassar's NPI active?
- Yes — Jack Vassar's NPI (1750661633) is active in the NPPES registry as of the last update on 2014-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.