Eric Flagg, M.D.
NPI 1588001838 · Diagnostic Radiology Physician · Burlingame, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Flagg, M.D. is a Diagnostic Radiology Physician provider in Burlingame, CA (NPI 1588001838).
Provider details
- NPI number
- 1588001838
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A147130 (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
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
7 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
11,862 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) |
|---|---|---|
| X-Ray of Chest, 2 Views71046 | 5,621 | $20 |
| Ct Scan of Chest Without Contrast71250 | 4,010 | $76 |
| Ct Scan of Chest With Contrast71260 | 952 | $76 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 494 | $127 |
| Low Dose Ct Scan of Chest for Lung Cancer Screening71271 | 439 | $80 |
| X-Ray of Chest, 1 View71045 | 208 | $9 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,000 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 (6)
- 5176 Hill Rd ELakeport, CA 95453-6300Phone: (707) 262-5011
- 505 Parnassus Ave Rm M-396San Francisco, CA 94143-2204Phone: (415) 514-5681
- 1101 Van Ness Ave Fl 3San Francisco, CA 94109-6919Phone: (415) 600-3232Fax: (415) 447-6335
- 100 S San Mateo DrSan Mateo, CA 94401-3805Phone: (650) 696-4515Fax: (650) 696-4626
- 222 W 39th AveSan Mateo, CA 94403-4364Phone: (650) 573-2222Fax: (650) 573-2122
- 550 1st AveNew York, NY 10016-6402Phone: (212) 263-7300
Registry dates
- Enumerated
- 2013-05-28
- Last updated
- 2020-09-23
- Certified
- 2020-09-23
Frequently asked questions
- What is Eric Flagg's NPI number?
- Eric Flagg's National Provider Identifier (NPI) is 1588001838, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Flagg's specialty?
- Eric Flagg is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Flagg located?
- Eric Flagg's practice location on file with NPPES is 1501 Trousdale Dr, Burlingame, CA 94010-4506.
- What is Eric Flagg's phone number?
- The practice phone number listed in the NPPES registry for Eric Flagg is (650) 696-5515.
- Does Eric Flagg accept Medicare?
- Eric Flagg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Flagg's NPI active?
- Yes — Eric Flagg's NPI (1588001838) is active in the NPPES registry as of the last update on 2020-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.