Mark Giglio, MD
NPI 1134129182 · Family Medicine Physician · Brea, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Giglio, MD is a Family Medicine Physician provider in Brea, CA (NPI 1134129182).
Provider details
- NPI number
- 1134129182
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G67099 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
714 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 | 368 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 133 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 102 | $140 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 32 | $26 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 25 | $16 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 515 | 159 |
| Levothyroxine Sodium | 351 | 90 |
| Amlodipine Besylate | 334 | 101 |
| Losartan Potassium | 264 | 81 |
| Lisinopril | 196 | 59 |
| Simvastatin | 193 | 56 |
| Hydrochlorothiazide | 185 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40 across 2 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)
- 2720 N Harbor BlvdSuite 200Fullerton, CA 92835-2609Phone: (714) 449-6910Fax: (714) 525-1698
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2021-11-02
- Certified
- 2021-11-02
Frequently asked questions
- What is Mark Giglio's NPI number?
- Mark Giglio's National Provider Identifier (NPI) is 1134129182, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Giglio's specialty?
- Mark Giglio is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Giglio located?
- Mark Giglio's practice location on file with NPPES is 955 W Imperial Hwy Ste 110, Brea, CA 92821.
- What is Mark Giglio's phone number?
- The practice phone number listed in the NPPES registry for Mark Giglio is (714) 449-6900.
- Does Mark Giglio accept Medicare?
- Mark Giglio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Giglio's NPI active?
- Yes — Mark Giglio's NPI (1134129182) is active in the NPPES registry as of the last update on 2021-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.