Mark Fredrick, MD
NPI 1518964998 · Internal Medicine Physician · Huntington Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Fredrick, MD is a Internal Medicine Physician provider in Huntington Beach, CA (NPI 1518964998).
Provider details
- NPI number
- 1518964998
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G67380 (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
21 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
466 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 203 | $99 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 116 | $62 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 38 | $98 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 33 | $62 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 32 | $140 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 27 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 120 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 435 | 133 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 221 | 40 |
| Amlodipine Besylate | 218 | 62 |
| Levothyroxine Sodium | 217 | 61 |
| Metformin Hcl | 207 | 64 |
| Pioglitazone Hcl | 204 | 67 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-30
- Last updated
- 2025-12-15
- Certified
- 2025-12-15
Frequently asked questions
- What is Mark Fredrick's NPI number?
- Mark Fredrick's National Provider Identifier (NPI) is 1518964998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fredrick's specialty?
- Mark Fredrick is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Fredrick located?
- Mark Fredrick's practice location on file with NPPES is 19066 Magnolia St, Huntington Beach, CA 92646.
- What is Mark Fredrick's phone number?
- The practice phone number listed in the NPPES registry for Mark Fredrick is (714) 968-0068.
- Does Mark Fredrick accept Medicare?
- Mark Fredrick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Fredrick's NPI active?
- Yes — Mark Fredrick's NPI (1518964998) is active in the NPPES registry as of the last update on 2025-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.