NPPES file of Aug 9, 2026

Mark Raymond Maher, DDS

General Practice Dentistry · Walnut Creek, CA

Mark Raymond Maher, DDS is a general practice dentistry with a practice address in Walnut Creek, California, and NPI 1306823539, issued on Dec 29, 2005. Check the license (California 52887, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306823539
Name
Mark Raymond Maher
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
52887 CA
Self-reported in NPPES; status is on the state search
Practice location
1855 San Miguel Dr, Walnut Creek, CA 94596
Phone
(925) 935-1159
Enumerated
Dec 29, 2005
Record last updated
Dec 2, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(925) 935-1146
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1855 San Miguel Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bret Annoni, D.D.S.General Practice Dentistry1982651295
  2. Bobby Aycock, M.D.Plastic Surgery Physician1063567873
  3. Joseph Barakeh, DO PHDOphthalmology Physician1013990613
  4. Michael Carpentier, D.D.S.General Practice Dentistry1568558476
  5. Mark Drucker, MDOphthalmology Physician1699753046
  6. Howard Friedman, PH.D.Clinical Neuropsychologist1578789780

Verify Mark Raymond Maher in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 52887
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

36% fewer Medicare Part D claims than the average general practice dentistry in 2024

53 Medicare Part D claims for 39 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Mark Maher53
  2. Specialty average83

Most prescribed

  1. Amoxicillin31 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 Raymond Maher among 17,852 general practice dentistry records in California

Mark Raymond Maher, DDS is one of 17,852 general practice dentistry records with a practice address in California. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 97% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2008 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

71 general practice dentistry records list a practice address in Walnut Creek

They are 71 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Bret Annoni, D.D.S.Walnut Creek, CA 945961982651295
  2. Timothy Callahan, DDSWalnut Creek, CA 945961275633836
  3. Michael Carpentier, D.D.S.Walnut Creek, CA 945961568558476
  4. Maryam Doroudian, DDSWalnut Creek, CA 945961821018722
  5. Tsui Wai Eng, D.D.S.Walnut Creek, CA 945961245240845
  6. Grace-Mary Hume, D.D.S.Walnut Creek, CA 945961871689786
  7. Dwight Loder, DDSWalnut Creek, CA 945961538287784
  8. Daniel Moore, DDSWalnut Creek, CA 945961487644159

Common questions

What is Mark Raymond Maher, DDS's NPI number?

Mark Raymond Maher, DDS's National Provider Identifier (NPI) is 1306823539, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Raymond Maher, DDS located?

The NPPES record lists a practice address at 1855 San Miguel Dr, Walnut Creek, CA, 94596. Phone: (925) 935-1159. Providers update this record themselves, so call before visiting.

How can I verify Mark Raymond Maher, DDS's license?

NPPES lists California license number 52887, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Raymond Maher, DDS prescribe under Medicare Part D?

In 2024, Mark Raymond Maher, DDS had 53 Medicare Part D claims for 39 beneficiaries; the average among general practice dentistry prescribers was 83. 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.