Mark Mamlouk, M.D.
NPI 1720248388 · Diagnostic Radiology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Mamlouk, M.D. is a Diagnostic Radiology Physician provider in Orange, CA (NPI 1720248388).
Provider details
- NPI number
- 1720248388
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A108958 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
60 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 21 | $44 |
| Mri Scan of Brain Without Contrast70551 | 20 | $76 |
| Mri Scan of Brain Before and After Contrast70553 | 19 | $119 |
Typical Medicare-allowed amounts for these services range $44–$119 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-16
- Last updated
- 2022-02-11
Frequently asked questions
- What is Mark Mamlouk's NPI number?
- Mark Mamlouk's National Provider Identifier (NPI) is 1720248388, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Mamlouk's specialty?
- Mark Mamlouk is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Mamlouk located?
- Mark Mamlouk's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Mark Mamlouk's phone number?
- The practice phone number listed in the NPPES registry for Mark Mamlouk is (714) 456-6579.
- Does Mark Mamlouk accept Medicare?
- Mark Mamlouk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Mamlouk's NPI active?
- Yes — Mark Mamlouk's NPI (1720248388) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.