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Orthopaedic Surgery Specialists in Mission Viejo, CA

Browse 14 Orthopaedic Surgery providers listed in NPPES with a practice address in Mission Viejo, California.

14 Healthcare Providers

How Mission Viejo compares with the U.S.

Mission Viejo has 15 clinicians in Orthopaedic Surgery per 100,000 residents, 2.0 times the U.S. rate of 7.4.

That is 14 active clinicians in Orthopaedic Surgery with a practice address in Mission Viejo, for a population of 92,151.

The California rate is 5.8 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

Too few clinicians in Orthopaedic Surgery in Mission Viejo are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Showing 1โ€“14 of 14 providers
With recent CMS data first, then Aโ€“Z

Dr. Kent R Adamson , MD

Orthopaedic Surgery

Active NPI Status
26401 Crown Valley Pkwy, Suite 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1043277312
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Dr. Michael D Burdi , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
26401 Crown Valley Pkwy, Suite 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1801853189
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Dr. Daniel Duggan , DO

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
27725 Santa Margarita Pkwy Ste 100, Mission Viejo, CA 926916706
Phone: 9493933193
NPI Identifier 1750575437
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Dr. Stephen T Gardner , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
26401 Crown Valley Pkwy Ste 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1871753392
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Dr. Michael S Marandola , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
26401 Crown Valley Pkwy, Suite 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1013974393
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Dr. Kent S Marangi , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
26401 Crown Valley Pkwy Ste 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1477510758
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Dr. John R Morris , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
26401 Crown Valley Pkwy, Suite 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1396703161
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Dr. Samuel Wan Park , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
26730 Crown Valley Pkwy, Suite 200, Mission Viejo, CA 92691
Phone: 9493642154
NPI Identifier 1710181854
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Dr. Tom D Thomas , MD

Orthopaedic Surgery

Active NPI Status
26401 Crown Valley Pkwy, Suite 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1447218219
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Dr. Stephen Leonard Tocci , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
26401 Crown Valley Pkwy Ste 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1588771745
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Dr. Richard James Claveria , MD

Orthopaedic Surgery

Active NPI Status
26921 Crown Valley Pkwy, #201, Mission Viejo, CA 926916501
Phone: 9493482250
NPI Identifier 1689637761
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Dr. Mark Shigeru Ishimaru , MD

Orthopaedic Surgery

Active NPI Status
26730 Crown Valley Parkway, Suite 200, Mission Viejo, CA 926918001
Phone: 9493642154
NPI Identifier 1821041161
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Dr. Jerald P Waldman , MD

Orthopaedic Surgery

Active NPI Status
26401 Crown Valley Pkwy, Suite 101, Mission Viejo, CA 926916302
Phone: 9493484000
NPI Identifier 1659339414
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Dr. John W Witczak , DO

Orthopaedic Surgery

Active NPI Status
26921 Crown Valley Pkwy, Ste 201, Mission Viejo, CA 926916501
Phone: 9493482250
NPI Identifier 1811913825
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Frequently Asked Questions about Orthopaedic Surgery in Mission Viejo

How do I check a Orthopaedic Surgery practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.