DR. MARK SAMUEL KATSMA DO
NPI 1326571969
Orthopaedic Surgery - Pediatric Orthopaedic Surgery in San Diego, CA

NPI Status: Active since April 11, 2017

Contact Information

34800 BOB WILSON DR
SAN DIEGO, CA
ZIP 92134
Phone: (619) 532-8488

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  • Individual
  • Male
  • Orthopaedic Surgery
  • Pediatric Orthopaedic Surgery
  • PECOS Enrolled

About MARK KATSMA

This page provides the complete NPI Profile along with additional information for Mark Katsma, a provider established in San Diego, California with a medical specialization in Orthopaedic Surgery, focusing in pediatric orthopaedic surgery . The healthcare provider is registered in the NPI registry with number 1326571969 assigned on April 2017. The practitioner's primary taxonomy code is 207XP3100X with license number 20A19988 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1326571969
Provider Name
DR. MARK SAMUEL KATSMA DO
Gender
Male
Entity Type
Individual
Location Address
34800 BOB WILSON DR SAN DIEGO, CA 92134
Location Phone
(619) 532-8488
Mailing Address
3020 CHILDRENS WAY # MC5003 SAN DIEGO, CA 92123
Mailing Phone
(858) 309-6300
Is Sole Proprietor?
No
Enumeration Date
04-11-2017
Last Update Date
10-03-2025
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Location Map

Secondary Locations

  • 3030 Childrens Way
    San Diego, CA 92123
    (858) 966-6789

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Orthopaedic Surgery Pediatric Orthopaedic Surgery

Taxonomy Code
207XP3100X
Type
Allopathic & Osteopathic Physicians
License No.
20A19988
License State
CA
Taxonomy Description
An orthopedic surgeon who has additional training and experience in diagnosing, treating and managing musculoskeletal problems in infants, children and adolescents. These may include limb and spine deformities (such as club foot, scoliosis); gait abnormalities (limping); bone and joint infections; broken bones.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207X00000XAllopathic & Osteopathic Physicians

Orthopaedic Surgery

20A19988 (CA)

Medicare Participation & PECOS Enrollment Status

Mark Katsma is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Reviews for DR. MARK SAMUEL KATSMA DO

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1326571969, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
2
Doubled → 4
Pos 4
6
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
1
Doubled → 2
Pos 8
9
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
9
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 2 → 4 5 → 10 → 1 1 → 2 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 4 + 6 + 1 + 0 + 7 + 2 + 9 + 1 + 2 + 24 = 61

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1326571969.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Registered Nurse (Neonatal Intensive Care)
34800 BOB WILSON DR
SAN DIEGO, CA 92134
Nurse Anesthetist, Certified Registered
34800 BOB WILSON DR, DEPARTMENT OF ANESTHESIOLOGY
SAN DIEGO, CA 92134
General Practice
34800 BOB WILSON DR, NAVAL MEDICAL CENTER SAN DIEGO
SAN DIEGO, CA 92134
Nurse Anesthetist, Certified Registered
34800 BOB WILSON DR
SAN DIEGO, CA 92134
Radiology (Diagnostic Radiology)
34800 BOB WILSON DR
SAN DIEGO, CA 92134
Pediatrics
34800 BOB WILSON DR, NMCSD,ATTN:MEDICAL STAFF SERVICES
SAN DIEGO, CA 92134
Pharmacist
34800 BOB WILSON DR, PHARMACY DEPARTMENT
SAN DIEGO, CA 92134
Pathology (Blood Banking & Transfusion Medicine)
34800 BOB WILSON DR, NAVAL MEDICAL CENTER
SAN DIEGO, CA 92134
Pharmacist
34800 BOB WILSON DR
SAN DIEGO, CA 92134
Internal Medicine (Cardiovascular Disease)
34800 BOB WILSON DR, NMCSD, ATTN : MEDICAL STAFF SERVICES
SAN DIEGO, CA 92134
Pharmacist
34800 BOB WILSON DR
SAN DIEGO, CA 92134
Nurse Anesthetist, Certified Registered
34800 BOB WILSON DR
SAN DIEGO, CA 92134
Dentist (Dental Public Health)
34800 BOB WILSON DR, NMCSD, ATTN: MEDICAL STAFF SERVICES
SAN DIEGO, CA 92134
Pharmacist
34800 BOB WILSON DR
SAN DIEGO, CA 92134
Nurse Anesthetist, Certified Registered
34800 BOB WILSON DR
SAN DIEGO, CA 92134
Obstetrics & Gynecology
34800 BOB WILSON DR, NMCSD, ATTN: MEDICAL STAFF SERVICES
SAN DIEGO, CA 92134
Nuclear Medicine (Nuclear Imaging & Therapy)
34800 BOB WILSON DR, NMCSD, ATTN: MEDICAL STAFF SERVICES
SAN DIEGO, CA 92134
Radiology (Diagnostic Radiology)
34800 BOB WILSON DR, DEPARTMENT OF RADIOLOGY
SAN DIEGO, CA 92134
Physical Therapist
34800 BOB WILSON DR, NMCSD, ATTN: MEDICAL STAFF SERVICES
SAN DIEGO, CA 92134
Pharmacist
34800 BOB WILSON DR
SAN DIEGO, CA 92134

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1326571969, enumerated as an "individual" on April 11, 2017.

The provider is located at 34800 BOB WILSON DR SAN DIEGO, CA 92134 and the phone number is (619) 532-8488.

Orthopaedic Surgery with taxonomy code 207XP3100X and a focus in Pediatric Orthopaedic Surgery.