Daniel Duggan, D.O.
Orthopaedic Surgery Physician · Mission Viejo, CA
Daniel Duggan, D.O. is an orthopaedic surgery physician with a practice address in Mission Viejo, California, and NPI 1750575437, issued on Sep 5, 2007. Check the license (California 20A11369, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel Duggan
- Credential
- D.O.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 20A11369 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27725 Santa Margarita Pkwy Ste 100, Mission Viejo, CA 92691
- Phone
- (949) 393-3193
- Enumerated
- Sep 5, 2007
- Record last updated
- Feb 5, 2026
- Fax
- (949) 393-3199
- Medicare enrollment
- Enrolled (PECOS I20110919000474); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 27725 Santa Margarita Pkwy Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anthony Mendoza, D.C.Chiropractor1972873602
Verify Daniel Duggan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A11369Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
286 Medicare Part D claims for 85 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 135 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen76 claims
- Cephalexin44 claims
- Meloxicam44 claims
- Tramadol Hcl31 claims
- Xarelto28 claims
- Hydrocodone-Acetaminophen26 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: $507.39
10 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 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.
Bills Medicare through one group practice
- OC Sports And OrthopaedicsMission Viejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Duggan among 2,276 orthopaedic surgery physician records in California
Daniel Duggan, D.O. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 35% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2005 · median 2003 among the 1,347 with a school on file
- Record last updated2026 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Mission Viejo → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Kent Adamson, MDMission Viejo, CA 926911043277312
- Michael Burdi, MDMission Viejo, CA 926911801853189
- Richard Claveria, M.D.Mission Viejo, CA 926911689637761
- Stephen Gardner, M.D.Mission Viejo, CA 926911871753392
- Mark Ishimaru, MDMission Viejo, CA 926911821041161
- Michael Marandola, MDMission Viejo, CA 926911013974393
- Kent Marangi, MDMission Viejo, CA 926911477510758
- John Morris, MDMission Viejo, CA 926911396703161
Common questions
What is Daniel Duggan, D.O.'s NPI number?
Daniel Duggan, D.O.'s National Provider Identifier (NPI) is 1750575437, issued on Sep 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Duggan, D.O. located?
The NPPES record lists a practice address at 27725 Santa Margarita Pkwy Ste 100, Mission Viejo, CA, 92691. Phone: (949) 393-3193. Providers update this record themselves, so call before visiting.
How can I verify Daniel Duggan, D.O.'s license?
NPPES lists California license number 20A11369, 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 Daniel Duggan, D.O. prescribe under Medicare Part D?
In 2024, Daniel Duggan, D.O. had 286 Medicare Part D claims for 85 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.