Giribala Patel, M.D.
NPI 1033106562 · Medical Oncology Physician · Fullerton, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Giribala Patel, M.D. is a Medical Oncology Physician provider in Fullerton, CA (NPI 1033106562).
Provider details
- NPI number
- 1033106562
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A43865 (CA)
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
783 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 | 546 | $138 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 190 | $193 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 34 | $235 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 13 | $171 |
Typical Medicare-allowed amounts for these services range $138–$235 (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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 312 | 88 |
| Exemestane | 108 | 45 |
| Potassium Chloride | 102 | 37 |
| Letrozole | 79 | 28 |
| Ondansetron Hcl | 78 | 41 |
| Prochlorperazine Maleate | 71 | 40 |
| Olanzapine | 64 | 22 |
| Dexamethasone | 64 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,879 across 104 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
- 2005-09-30
- Last updated
- 2021-11-09
- Certified
- 2021-11-09
Frequently asked questions
- What is Giribala Patel's NPI number?
- Giribala Patel's National Provider Identifier (NPI) is 1033106562, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Giribala Patel's specialty?
- Giribala Patel is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Giribala Patel located?
- Giribala Patel's practice location on file with NPPES is 2151 N Harbor Blvd Ste 3200, Fullerton, CA 92835-3826.
- What is Giribala Patel's phone number?
- The practice phone number listed in the NPPES registry for Giribala Patel is (714) 446-5900.
- Does Giribala Patel accept Medicare?
- Giribala Patel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Giribala Patel's NPI active?
- Yes — Giribala Patel's NPI (1033106562) is active in the NPPES registry as of the last update on 2021-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.