Marc Donald Crosby, DDS
General Practice Dentistry · Laguna Hills, CA
Marc Donald Crosby, DDS is a general practice dentistry with a practice address in Laguna Hills, California, and NPI 1104090398, issued on Apr 17, 2008. Check the license (California 33740, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marc Donald Crosby
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 33740 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25411 Cabot RD Ste 108, Laguna Hills, CA 92653
- Phone
- (949) 951-1066
- Enumerated
- Apr 17, 2008
- Record last updated
- Sep 9, 2025
- Fax
- (949) 951-6425
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Verify Marc Donald Crosby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 33740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average general practice dentistry in 2024
115 Medicare Part D claims for 72 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin73 claims
- Chlorhexidine Gluconate34 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.
Industry payments in 2024: $164.04
2 payments; by number, the most common kind was food and beverage; the largest payer was Patterson Companies, Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Marc Donald Crosby among 17,852 general practice dentistry records in California
Marc Donald Crosby, 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 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 35% 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 updated2025 · 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).
39 general practice dentistry records list a practice address in Laguna Hills
They are 39 of the 2,069 NPPES records with a practice address in Laguna Hills, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Laguna Hills → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Peter Abas, D.D.S.Laguna Hills, CA 926531154339273
- Lida Ahmadi-Kashani, DMDLaguna Hills, CA 926531992872246
- Joan Coulson, DDSLaguna Hills, CA 926531851389670
- James Farthing, DDSLaguna Hills, CA 926531306994462
- Robert Hammond, D.D.S.Laguna Hills, CA 926531518065762
- David Harris, DDSLaguna Hills, CA 926531174695050
- Ivan Ho, D.D.S.Laguna Hills, CA 926531891762886
- Martin Kruger, DDSLaguna Hills, CA 926531275673006
Common questions
What is Marc Donald Crosby, DDS's NPI number?
Marc Donald Crosby, DDS's National Provider Identifier (NPI) is 1104090398, issued on Apr 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marc Donald Crosby, DDS located?
The NPPES record lists a practice address at 25411 Cabot RD Ste 108, Laguna Hills, CA, 92653. Phone: (949) 951-1066. Providers update this record themselves, so call before visiting.
How can I verify Marc Donald Crosby, DDS's license?
NPPES lists California license number 33740, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Marc Donald Crosby, DDS prescribe under Medicare Part D?
In 2024, Marc Donald Crosby, DDS had 115 Medicare Part D claims for 72 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.