Mark Labeau, D.O.
Internal Medicine Physician · Encinitas, CA
Mark Labeau, D.O. is an internal medicine physician with a practice address in Encinitas, California, and NPI 1104902253, issued on Oct 31, 2006. Check the license (California 20A6565, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Labeau
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A6565 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4403 Manchester Ave., Encinitas, CA 92084
- Phone
- (760) 632-9042
- Enumerated
- Oct 31, 2006
- Record last updated
- Jun 15, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (760) 632-0574
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Mark Labeau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6565Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
106 Medicare Part D claims for 23 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Methylprednisolone17 claims
- Quetiapine Fumarate16 claims
- Valsartan11 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.
Mark Labeau among 17,696 internal medicine physician records in California
Mark Labeau, D.O. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2010 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 internal medicine physician records list a practice address in Encinitas
They are 63 of the 1,874 NPPES records with a practice address in Encinitas, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Encinitas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Michael Macmurray, M.D.Vista, CA 920841386660280
- Victor Souza, M.D.Vista, CA 920841457340200
- William Weissman, MDVista, CA 920841730114992
- Clark Bach, M.D.Vista, CA 920831831579689
- Max Chen, M.D.Vista, CA 920831285750356
Common questions
What is Mark Labeau, D.O.'s NPI number?
Mark Labeau, D.O.'s National Provider Identifier (NPI) is 1104902253, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Labeau, D.O. located?
The NPPES record lists a practice address at 4403 Manchester Ave., Encinitas, CA, 92084. Phone: (760) 632-9042. Providers update this record themselves, so call before visiting.
How can I verify Mark Labeau, D.O.'s license?
NPPES lists California license number 20A6565, 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 Labeau, D.O. prescribe under Medicare Part D?
In 2024, Mark Labeau, D.O. had 106 Medicare Part D claims for 23 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.