Zachary Drennen, DO
NPI 1427518448 · Anesthesiology Physician · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Drennen, DO is a Anesthesiology Physician provider in Pittsburgh, PA (NPI 1427518448).
Provider details
- NPI number
- 1427518448
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
35 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 21 | $42 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 14 | $73 |
Typical Medicare-allowed amounts for these services range $42–$73 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
Additional practice locations (1)
- 201 14th St SwLargo, FL 33770-3133Phone: (727) 588-5704
Registry dates
- Enumerated
- 2019-03-25
- Last updated
- 2023-12-01
- Certified
- 2023-11-30
Frequently asked questions
- What is Zachary Drennen's NPI number?
- Zachary Drennen's National Provider Identifier (NPI) is 1427518448, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Drennen's specialty?
- Zachary Drennen is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Drennen located?
- Zachary Drennen's practice location on file with NPPES is 320 E North Ave, Pittsburgh, PA 15212-4756.
- What is Zachary Drennen's phone number?
- The practice phone number listed in the NPPES registry for Zachary Drennen is (412) 359-3155.
- Does Zachary Drennen accept Medicare?
- Zachary Drennen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Drennen's NPI active?
- Yes — Zachary Drennen's NPI (1427518448) is active in the NPPES registry as of the last update on 2023-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.