Mark Samuel Katsma, DO
Pediatric Orthopaedic Surgery Physician · San Diego, CA
Mark Samuel Katsma, DO is a pediatric orthopaedic surgery physician with a practice address in San Diego, California, and NPI 1326571969, issued on Apr 11, 2017. Check the license (California 20A19988, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Samuel Katsma
- Credential
- DO
- Primary taxonomy
- Pediatric Orthopaedic Surgery Physician 207XP3100X
- License number
- 20A19988 CA
Self-reported in NPPES; status is on the state search - Practice location
- 34800 Bob Wilson Dr, San Diego, CA 92134
- Phone
- (619) 532-8488
- Enumerated
- Apr 11, 2017
- Record last updated
- Oct 3, 2025
- Entity
- Type 1 · individual
8 nearest pediatric orthopaedic surgery physician records → All 76 in California → Look up another NPI →
Also registered at 34800 Bob Wilson Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nehkonti Adams, M.D.Infectious Disease Physician1194985705
- Maryam Adebayo, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1346799269
- Caleb Adkins, DOGeneral Practice Physician1689430860
- Kyle Adkins, PHARMDPharmacist1477740884
- Phillip Adriano, M.D.Emergency Medicine Physician1568576585
Verify Mark Samuel Katsma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A19988Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $24.38
1 payment: food and beverage; the largest payer was Stryker Corporation. The 503 providers of this specialty with any payment received $5,092.64 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.
Mark Samuel Katsma among 76 pediatric orthopaedic surgery physician records in California
Mark Samuel Katsma, DO is one of 76 pediatric orthopaedic surgery physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 89% of them.
- NPI issued2017 · 89% of these records are older, 7% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 29% of these records are
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XP3100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Orthopaedic Surgery Physician providers in California
There are 76 pediatric orthopaedic surgery physician records in California.
All 76 in California → Every provider in San Diego → Pediatric Orthopaedic Surgery Physician nationwide →
The 8 pediatric orthopaedic surgery physician records with the nearest ZIP codes
- Kimberly Spahn, M.D.San Diego, CA 921341578859435
- Michael Kwon, M.D.San Diego, CA 921231548477631
- Lisa Miller, MDSan Diego, CA 921231053470591
- Chinmay Paranjape, MDSan Diego, CA 921231932633799
- Matthew Schmitz, M.D.San Diego, CA 921231568686871
- Christopher Souder, M.D.San Diego, CA 921231851540199
- Michael Kimball, M.D.San Diego, CA 921211588648653
- Matthew Vance, MDSan Diego, CA 921211336316652
Common questions
What is Mark Samuel Katsma, DO's NPI number?
Mark Samuel Katsma, DO's National Provider Identifier (NPI) is 1326571969, issued on Apr 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mark Samuel Katsma, DO located?
The NPPES record lists a practice address at 34800 Bob Wilson Dr, San Diego, CA, 92134. Phone: (619) 532-8488. Providers update this record themselves, so call before visiting.
How can I verify Mark Samuel Katsma, DO's license?
NPPES lists California license number 20A19988, 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.
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.