Nathan Bahary, MD, PHD
NPI 1578535803 · Specialist · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Bahary, MD, PHD is a Specialist provider in Pittsburgh, PA (NPI 1578535803).
Provider details
- NPI number
- 1578535803
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- MD420463 (PA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
231 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 119 | $138 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $98 |
| 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 | 30 | $16 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 17 | $174 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 16 | $117 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prochlorperazine Maleate | 35 | 27 |
| Ondansetron Hcl | 16 | 11 |
| Lipase/Protease/Amylasebrand: Creon | 15 | — |
| Afatinib Dimaleatebrand: Gilotrif | 14 | — |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 13 | — |
| Imatinib Mesylate | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,906 across 4 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
- 2006-02-02
- Last updated
- 2021-09-30
- Certified
- 2021-09-30
Frequently asked questions
- What is Nathan Bahary's NPI number?
- Nathan Bahary's National Provider Identifier (NPI) is 1578535803, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Bahary's specialty?
- Nathan Bahary is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Nathan Bahary located?
- Nathan Bahary's practice location on file with NPPES is 320 E North Ave Rm O242, Pittsburgh, PA 15212-4772.
- What is Nathan Bahary's phone number?
- The practice phone number listed in the NPPES registry for Nathan Bahary is (412) 359-6391.
- Does Nathan Bahary accept Medicare?
- Nathan Bahary is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Bahary's NPI active?
- Yes — Nathan Bahary's NPI (1578535803) is active in the NPPES registry as of the last update on 2021-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.