Mark J. Fredrick, MD
Internal Medicine Physician · Huntington Beach, CA
Mark J. Fredrick, MD is an internal medicine physician with a practice address in Huntington Beach, California, and NPI 1518964998, issued on Jun 30, 2005. Check the license (California G67380, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark J. Fredrick
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G67380 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19066 Magnolia St, Huntington Beach, CA 92646
- Phone
- (714) 968-0068
- Enumerated
- Jun 30, 2005
- Record last updated
- Dec 15, 2025
- Fax
- (714) 378-2188
- Medicare enrollment
- Enrolled (PECOS I20050419000957); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 19066 Magnolia St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicole Byrnes, BS, R.EEG T.EEG Specialist/Technologist1962072173
- Karen Carter, LCSWClinical Social Worker1598988370
- Kathleen Coffman, PAMedical Physician Assistant1013912575
- Tracy DriverRheumatology Physician1982048112
- Tiffany Erickson, PT, DPTPhysical Therapist1073079059
- James GlorePhysician Assistant1679034144
Verify Mark J. Fredrick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G67380Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,508 Medicare Part D claims for 510 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 307 claims were for opioids.
Most prescribed
- Atorvastatin Calcium435 claims
- Hydrocodone-Acetaminophen221 claims
- Amlodipine Besylate218 claims
- Levothyroxine Sodium217 claims
- Metformin Hcl207 claims
- Pioglitazone Hcl204 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Healthcare Partners Affiliates Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
48 internal medicine physician records list a practice address in Huntington Beach
They are 48 of the 4,031 NPPES records with a practice address in Huntington Beach, and 17,696 internal medicine physician records in California.
All 48 in Huntington Beach → All 17,696 in California → Every provider in Huntington Beach →
Other internal medicine physician records in California
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- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Mark J. Fredrick, MD's NPI number?
Mark J. Fredrick, MD's National Provider Identifier (NPI) is 1518964998, issued on Jun 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark J. Fredrick, MD located?
The NPPES record lists a practice address at 19066 Magnolia St, Huntington Beach, CA, 92646. Phone: (714) 968-0068. Providers update this record themselves, so call before visiting.
How can I verify Mark J. Fredrick, MD's license?
NPPES lists California license number G67380, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark J. Fredrick, MD prescribe under Medicare Part D?
In 2024, Mark J. Fredrick, MD had 7,508 Medicare Part D claims for 510 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.