Dr. Mark J. Korkowski, MD
- Part D claims, 2024
- 162
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 1
- State licenses
- 3
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
Find Dr. Korkowski's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark J. Korkowski is an OB-GYN in Santa Clara, California
Dr. Korkowski practices at Permanente Medical Group Inc in Santa Clara, California.
Dr. Korkowski's NPI, 1164572962, was assigned on January 12, 2007. Dr. Korkowski graduated from University of Toledo College of Medicine and Life Sciences in 1989. Dr. Korkowski holds California license G77926.
- NPI
- 1164572962NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688862634
- NPI enumeration date
- January 12, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark J. Korkowski practices at Permanente Medical Group Inc in Santa Clara, California
Dr. Korkowski's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark J. Korkowski is affiliated with 2 sites of care and 1 medical group
Dr. Korkowski's primary practice is Permanente Medical Group Inc in Santa Clara, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Korkowski to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark J. Korkowski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Korkowski practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark J. Korkowski is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Korkowski's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Korkowski is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Korkowski's licenses on file in 3 states: California, Oregon and Ohio.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
- Oregon license
- Ohio license
OB-GYNs near Dr. Korkowski
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark J. Korkowski's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Korkowski's median patient age at 43, with 99% women.
Dr. Korkowski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women99%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Mark J. Korkowski wrote 162 Medicare Part D claims in 2024
In 2024, Dr. Korkowski wrote 162 Medicare Part D claims for 70 patients. 91% of them were for generic drugs. CMS names the drug for 58 of them, across 3 drugs with 11 or more claims each, at $1,817 in total drug cost. In 2023, CMS named 36 claims across 1 drug.
Dr. Korkowski's Part D claims by kind of drug, 2024
- Generic147 claims91%
- Brand-name15 claims9%
Dr. Korkowski's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 362024: 5861%
Drugs named by CMS: 3 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mark J. Korkowski takes part in Medicare
Dr. Korkowski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark J. Korkowski graduated from University of Toledo College of Medicine and Life Sciences
Dr. Korkowski graduated from University of Toledo College of Medicine and Life Sciences in 1989.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Mark J. Korkowski accepts plans from 1 insurance carrier
Dr. Korkowski is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Korkowski accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark J. Korkowski's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark J. Korkowski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark J. Korkowski's NPI number?
Dr. Mark J. Korkowski's NPI number is 1164572962. It was assigned on January 12, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark J. Korkowski?
Dr. Mark J. Korkowski is an OB-GYN in Santa Clara, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Mark J. Korkowski practice?
Dr. Korkowski practices at 710 Lawrence Expy, Santa Clara, CA 95051. Dr. Korkowski's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dmand AI also links Dr. Korkowski to 1 group practice or clinic.
What is Dr. Mark J. Korkowski's office phone number?
The practice phone on file for Dr. Korkowski is (408) 851-1000.
What is Dr. Mark J. Korkowski's medical license number?
Dr. Korkowski holds California license G77926, one of the licenses on file in 3 states.
Which states has Dr. Mark J. Korkowski been licensed in?
Dmand AI has state licenses on file for Dr. Korkowski in California (1993 to 2027), Oregon (since 1998) and Ohio (1992 to 1994).
What medical group is Dr. Mark J. Korkowski part of?
Dr. Korkowski is linked to The Permanente Medical Group, Inc.
Does Dr. Mark J. Korkowski accept Medicare?
Yes. CMS lists Dr. Korkowski as accepting Medicare assignment.
Is Dr. Mark J. Korkowski board certified?
Yes. Dr. Korkowski is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
Where did Dr. Mark J. Korkowski go to medical school?
Dr. Korkowski graduated from University of Toledo College of Medicine and Life Sciences in 1989.
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What drugs does Dr. Mark J. Korkowski prescribe most?
In 2024 Medicare Part D data, Dr. Korkowski's most prescribed drugs by claims were Estradiol, Fluconazole and Norethindrone Acetate.
How long has Dr. Mark J. Korkowski been practicing?
Dr. Korkowski graduated from medical school in 1989, 37 years ago.
What insurance does Dr. Mark J. Korkowski accept?
Dr. Korkowski is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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