Giovanna Manzano, MD
NPI 1376073528 · Neurology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Giovanna Manzano, MD is a Neurology Physician provider in Orange, CA (NPI 1376073528).
Provider details
- NPI number
- 1376073528
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A201544 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
535 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 259 | $123 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 98 | $149 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 54 | $195 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 45 | $82 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 26 | $180 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Pregabalin | 37 |
| Levetiracetam | 28 |
| Immun Glob G(igg)-Ifas/Glycinebrand: Panzyga | 25 |
| Immune Globul G/Gly/Iga Avg 46brand: Gammaked | 24 |
| Duloxetine Hcl | 23 |
| Methylprednisolone Sod Succbrand: Methylprednisolone Sodium Succ | 22 |
| Baclofen | 21 |
| Gabapentin | 21 |
| Glatiramer Acetate | 19 |
Practice location
Mailing address
Additional practice locations (1)
- Massachusetts General Hospital55 Fruit St.Boston, MA 02114Phone: (617) 643-0596
Registry dates
- Enumerated
- 2017-06-19
- Last updated
- 2025-11-18
- Certified
- 2025-11-18
Frequently asked questions
- What is Giovanna Manzano's NPI number?
- Giovanna Manzano's National Provider Identifier (NPI) is 1376073528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Giovanna Manzano's specialty?
- Giovanna Manzano is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Giovanna Manzano located?
- Giovanna Manzano's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Giovanna Manzano's phone number?
- The practice phone number listed in the NPPES registry for Giovanna Manzano is (714) 456-8888.
- Does Giovanna Manzano accept Medicare?
- Giovanna Manzano is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Giovanna Manzano's NPI active?
- Yes — Giovanna Manzano's NPI (1376073528) is active in the NPPES registry as of the last update on 2025-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.