David Greczek, PA-C
NPI 1649990060 · Physician Assistant · Brooklyn, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Greczek, PA-C is a Physician Assistant provider in Brooklyn, NY (NPI 1649990060).
Provider details
- NPI number
- 1649990060
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 028743 (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
3 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
353 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 | 71 | $123 |
| Urinalysis, Manual Test81002 | 55 | $3 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 50 | $87 |
| Electronic Assessment of Bladder Emptying51741 | 34 | $9 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 30 | $9 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 27 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 119 | 87 |
| Cefuroxime Axetilbrand: Cefuroxime | 60 | 58 |
| Finasteride | 55 | 36 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 50 | 34 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 43 | 32 |
| Ciprofloxacin Hcl | 38 | 37 |
| Mirabegronbrand: Myrbetriq | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$123 across 6 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
- 2022-08-29
- Last updated
- 2022-08-29
- Certified
- 2022-08-29
Frequently asked questions
- What is David Greczek's NPI number?
- David Greczek's National Provider Identifier (NPI) is 1649990060, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Greczek's specialty?
- David Greczek is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is David Greczek located?
- David Greczek's practice location on file with NPPES is 800 Poly Pl, Brooklyn, NY 11209-7104.
- What is David Greczek's phone number?
- The practice phone number listed in the NPPES registry for David Greczek is (718) 836-6600.
- Does David Greczek accept Medicare?
- David Greczek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Greczek's NPI active?
- Yes — David Greczek's NPI (1649990060) is active in the NPPES registry as of the last update on 2022-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.