Dr. Joon-Ha Ok, MD
- Medicare services, 2016
- 43
- Part D claims, 2016
- 610
- Hospital affiliations
- 1
- Industry payments
- $28
- State licenses
- 2
- Practice address
- 10535 Hospital Way, Mather, CA 95655
- Practice phone
- Call (800) 382-8387
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ok'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. Joon-Ha Ok is a urologist in Mather, California
Dr. Ok practices at Sacramento VA Medical Center in Mather, California, part of Veterans Health Administration.
Dr. Ok's NPI, 1336120088, was assigned on November 9, 2005. Dr. Ok holds California license A98957.
- NPI
- 1336120088NPI Registry (opens in a new tab)
- NPI enumeration date
- November 9, 2005
- NPI status
- Active
- Practice phone
- (800) 382-8387
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Joon-Ha Ok practices at Sacramento VA Medical Center in Mather, California
Dr. Ok's primary practice is Sacramento VA Medical Center, at 10535 Hospital Way, Mather, CA 95655 in Sacramento County. The practice phone is (800) 382-8387.
- Sacramento VA Medical Center10535 Hospital Way, Mather, CA 95655 · Sacramento CountyPhone(800) 382-8387
Source: Dmand AI Affiliation Data
Dr. Joon-Ha Ok is affiliated with 1 site of care
Dr. Ok's primary practice is Sacramento VA Medical Center in Mather, California, part of Veterans Health Administration.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joon-Ha Ok's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ok practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sacramento VA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Joon-Ha Ok is one of 1,395 urologists in California
Urology is Dr. Ok's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dmand AI has Dr. Ok's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Urology, CaliforniaPrimary
- Michigan license
Urologists near Dr. Ok
Counts of urologists 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. Joon-Ha Ok billed Medicare for 43 services in 2016
CMS data shows 43 Medicare services from Dr. Ok across 2 procedure codes in 2016. Medicare paid $323 for them. Every service was in an office.
Dr. Ok's Medicare services by type, 2016
- Office and hospital visits27
- Surgery16
Dr. Ok compared with the California median for urologists, 2016
- Dr. Ok
- California median
- Medicare services
- 43vs 1,05096% below
- Part D claims
- 610vs 642Close to median
Medians across 1,310 urologists in California with Dmand AI profiles that report each measure.
Dr. Ok's most billed Medicare procedure codes, 2016
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ok and other urologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joon-Ha Ok's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Ok's median patient age at 73, with 0% women.
Dr. Ok's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Joon-Ha Ok wrote 610 Medicare Part D claims in 2016
In 2016, Dr. Ok wrote 610 Medicare Part D claims. They cover 8 drugs, with $39,889 in total drug cost.
Dr. Ok's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Joon-Ha Ok received $28 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Ok from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Cook Medical LLC paid the most, $28.
Companies that paid Dr. Ok the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Joon-Ha Ok'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Joon-Ha Ok
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. Joon-Ha Ok's NPI number?
Dr. Joon-Ha Ok's NPI number is 1336120088. It was assigned on November 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Joon-Ha Ok?
Dr. Joon-Ha Ok is a urologist in Mather, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Joon-Ha Ok practice?
Dr. Ok practices at 10535 Hospital Way, Mather, CA 95655. Dr. Ok's primary practice is Sacramento VA Medical Center in Mather, California, part of Veterans Health Administration.
What is Dr. Joon-Ha Ok's office phone number?
The practice phone on file for Dr. Ok is (800) 382-8387.
What is Dr. Joon-Ha Ok's medical license number?
Dr. Ok holds California license A98957, one of the licenses on file in 2 states.
Which states has Dr. Joon-Ha Ok been licensed in?
Dmand AI has state licenses on file for Dr. Ok in California and Michigan.
Which hospitals is Dr. Joon-Ha Ok affiliated with?
Dr. Ok practices at Sacramento VA Medical Center in Mather, California.
Does Dr. Joon-Ha Ok accept Medicare?
Yes. CMS data shows Dr. Ok billed Medicare for 43 services in 2016.
What services does Dr. Joon-Ha Ok bill to Medicare?
In 2016, Dr. Ok's most billed Medicare services were office visit, established patient (99213) and surgery: urinary system (51798).
What drugs does Dr. Joon-Ha Ok prescribe most?
In 2016 Medicare Part D data, Dr. Ok's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Oxybutynin Chloride ER.
Has Dr. Joon-Ha Ok received payments from drug or device companies?
CMS Open Payments shows $28 in general payments to Dr. Ok from 1 company from 2019 to 2019. The largest total came from Cook Medical LLC.
How long has Dr. Joon-Ha Ok been practicing?
Dr. Ok's NPI was assigned in 2005.
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