NPPES file of Aug 9, 2026

Mark E. Elzik, M.D.

Orthopaedic Hand Surgery Physician · Mission Viejo, CA

Mark E. Elzik, M.D. is an orthopaedic hand surgery physician with a practice address in Mission Viejo, California, and NPI 1093904302, issued on Oct 23, 2007. Check the license (California A107354, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093904302
Name
Mark E. Elzik
Credential
M.D.
Primary taxonomy
Orthopaedic Hand Surgery Physician 207XS0106X
License number
A107354 CA
Self-reported in NPPES; status is on the state search
Practice location
26730 Crown Valley Pkwy, Mission Viejo, CA 92691
Phone
(949) 364-2154
Enumerated
Oct 23, 2007
Record last updated
Feb 17, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20131118000553); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 26730 Crown Valley Pkwy

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

  1. Herbert Eidt, M.D.Sports Medicine (Orthopaedic Surgery) Physician1093797367
  2. Samuel Park, MDOrthopaedic Surgery Physician1710181854
  3. Martha Scurr, PASurgical Physician Assistant1235569799
  4. Eric TaylorSports Medicine (Orthopaedic Surgery) Physician1255046777

Verify Mark E. Elzik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A107354
    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
Open 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.

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2.0 times the Medicare Part D claims of the average orthopaedic hand surgery physician in 2024

379 Medicare Part D claims for 166 beneficiaries, against an average of 186 among the 2,203 providers of this specialty who prescribed in Part D. 152 claims were for opioids.

  1. Mark Elzik379
  2. Specialty average186

Most prescribed

  1. Ondansetron Odt116 claims
  2. Hydrocodone-Acetaminophen112 claims
  3. Cephalexin59 claims
  4. Oxycodone-Acetaminophen34 claims
  5. Sulfamethoxazole-Trimethoprim19 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 52.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score38.5
  2. Costout of 100 · 30%54.8
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $31,291.15

56 payments; by number, the most common kind was food and beverage; the largest payer was Endo USA, Inc. The 1,819 providers of this specialty with any payment received $5,529.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Elzik$31,291
  2. Specialty average$5,530

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

  1. Orthopaedic Specialty Institute Medical Group OF Orange CountyMission Viejo, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark E. Elzik among 288 orthopaedic hand surgery physician records in California

Mark E. Elzik, M.D. is one of 288 orthopaedic hand surgery physician records with a practice address in California. 85% 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 48% of them.

  • NPI issued2007 · 48% of these records are older, 38% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2007 · median 2004 among the 214 with a school on file
  • Record last updated2020 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0106X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Hand Surgery Physician providers in California

There are 288 orthopaedic hand surgery physician records in California.

The 8 orthopaedic hand surgery physician records with the nearest ZIP codes

  1. Evan Guerrero, M.D.Mission Viejo, CA 926911346635125
  2. Ying Chi, M.D.Fountain Valley, CA 927081518178169
  3. Jawad Khan, M.D.Fountain Valley, CA 927081003115619
  4. Bhavik Patel, MDFountain Valley, CA 927081750919759
  5. Kevin Kim, D.ONewport Beach, CA 926631669826798
  6. John Cook, MDNewport Beach, CA 926601063588705
  7. Shaunak Desai, M.D.Newport Beach, CA 926601174733802
  8. Tze Ip, M.D.Newport Beach, CA 926601780629493

Common questions

What is Mark E. Elzik, M.D.'s NPI number?

Mark E. Elzik, M.D.'s National Provider Identifier (NPI) is 1093904302, issued on Oct 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark E. Elzik, M.D. located?

The NPPES record lists a practice address at 26730 Crown Valley Pkwy, Mission Viejo, CA, 92691. Phone: (949) 364-2154. Providers update this record themselves, so call before visiting.

How can I verify Mark E. Elzik, M.D.'s license?

NPPES lists California license number A107354, 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 E. Elzik, M.D. prescribe under Medicare Part D?

In 2024, Mark E. Elzik, M.D. had 379 Medicare Part D claims for 166 beneficiaries; the average among orthopaedic hand surgery physician prescribers was 186. Part D covers Medicare prescriptions only.

What is Mark E. Elzik, M.D.'s MIPS final score?

The 2023 MIPS final score is 52.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.