Robert Holloway, MD
NPI 1538109137 · Gynecologic Oncology Physician · Orlando, FL
Enrolled with Medicare as Practitioner - Gynecological Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Holloway, MD is a Gynecologic Oncology Physician provider in Orlando, FL (NPI 1538109137).
Provider details
- NPI number
- 1538109137
- Entity type
- Individual
- Primary specialty
- Gynecologic Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME58193 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1,244 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 | 762 | $124 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 148 | $77 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 82 | $164 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 78 | $88 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 50 | $128 |
| Removal of Uterus, Tubes, And/Or Ovaries Through Abdomen Using an Endoscope, 250.0 G Or Less |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoclopramide Hcl | 140 | 135 |
| Olanzapine | 132 | 39 |
| Letrozole | 122 | 31 |
| Ondansetron Hcl | 90 | 55 |
| Prochlorperazine Maleate | 67 | 42 |
| Gabapentin | 58 | 22 |
| Lidocaine/Prilocainebrand: Lidocaine-Prilocaine | 53 | 41 |
| Olaparibbrand: Lynparza |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$63,737 across 47 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
- 2006-06-08
- Last updated
- 2009-12-07
Frequently asked questions
- What is Robert Holloway's NPI number?
- Robert Holloway's National Provider Identifier (NPI) is 1538109137, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Holloway's specialty?
- Robert Holloway is listed in the NPPES registry with a primary specialty of Gynecologic Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Holloway located?
- Robert Holloway's practice location on file with NPPES is 2501 N Orange Ave, Orlando, FL 32804-4603.
- What is Robert Holloway's phone number?
- The practice phone number listed in the NPPES registry for Robert Holloway is (407) 303-2422.
- Does Robert Holloway accept Medicare?
- Robert Holloway is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Holloway's NPI active?
- Yes — Robert Holloway's NPI (1538109137) is active in the NPPES registry as of the last update on 2009-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.