Zayar Oo, MD
NPI 1083278253 · Hospitalist Physician · Apopka, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zayar Oo, MD is a Hospitalist Physician provider in Apopka, FL (NPI 1083278253).
Provider details
- NPI number
- 1083278253
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME155962 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
621 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 390 | $116 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 111 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 88 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 32 | $169 |
Typical Medicare-allowed amounts for these services range $77–$169 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 31 | 23 |
| Prednisone | 27 | 27 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 27 | 27 |
| Atorvastatin Calcium | 26 | 19 |
| Doxycycline Hyclate | 26 | 26 |
| Apixabanbrand: Eliquis | 21 | — |
| Furosemide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$193 across 9 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
Additional practice locations (1)
- 585 Schenectady AveBrooklyn, NY 11203-1851Phone: (718) 604-5401
Registry dates
- Enumerated
- 2019-04-23
- Last updated
- 2023-03-31
- Certified
- 2023-03-31
Frequently asked questions
- What is Zayar Oo's NPI number?
- Zayar Oo's National Provider Identifier (NPI) is 1083278253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zayar Oo's specialty?
- Zayar Oo is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Zayar Oo located?
- Zayar Oo's practice location on file with NPPES is 515 Wekiva Commons Cir, Apopka, FL 32712-3645.
- What is Zayar Oo's phone number?
- The practice phone number listed in the NPPES registry for Zayar Oo is (407) 464-9516.
- Does Zayar Oo accept Medicare?
- Zayar Oo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zayar Oo's NPI active?
- Yes — Zayar Oo's NPI (1083278253) is active in the NPPES registry as of the last update on 2023-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.