Mark T. De Boer, MD
Cardiovascular Disease Physician · Anaheim, CA
Mark T. De Boer, MD is a cardiovascular disease physician with a practice address in Anaheim, California, and NPI 1548331440, issued on Nov 13, 2006. Check the license (California G59873, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark T. De Boer
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- G59873 CA
145447 MT
Self-reported in NPPES; status is on the state search - Practice location
- 441 N Lakeview Ave, Anaheim, CA 92807
- Phone
- (888) 988-2800
- Enumerated
- Nov 13, 2006
- Record last updated
- Sep 25, 2024
- Medicare enrollment
- Enrolled (PECOS I20260108001687); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 441 N Lakeview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Behnam Abdollahi, MDDermatopathology Physician1598836520
- Mark Abramson, MDInternal Medicine Physician1396812202
- Suzanne Ackley, MDNeuromusculoskeletal Medicine & OMM Physician1740351667
- Carol Ahmed, D.O.Family Medicine Physician1598962961
Verify Mark T. De Boer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G59873Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
37 Medicare Part D claims for 32 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
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.
2 hospitals and group practices
- Livingston HealthcareLivingston, MT · Critical Access Hospitals3 of 5 stars
- Billings ClinicCody, WY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mark T. De Boer among 2,574 cardiovascular disease physician records in California
Mark T. De Boer, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1985 · median 1999 among the 1,742 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Anaheim → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- David Cesario, MDAnaheim, CA 928071033147541
- Ravi Jandhyala, MDAnaheim, CA 928071457409328
- Noel Johanson, MDAnaheim, CA 928071528081775
- Henry Lo, MDAnaheim, CA 928071679644553
- Robert Park, MDAnaheim, CA 928071942371851
- Kerry Teplinsky, MDAnaheim, CA 928071427129485
- Prasanna Challa, M.D.Anaheim, CA 928061194970814
- John Fan, MDAnaheim, CA 928061114129954
Common questions
What is Mark T. De Boer, MD's NPI number?
Mark T. De Boer, MD's National Provider Identifier (NPI) is 1548331440, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark T. De Boer, MD located?
The NPPES record lists a practice address at 441 N Lakeview Ave, Anaheim, CA, 92807. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.
How can I verify Mark T. De Boer, MD's license?
NPPES lists California license number G59873, 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 T. De Boer, MD prescribe under Medicare Part D?
In 2024, Mark T. De Boer, MD had 37 Medicare Part D claims for 32 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.