Dr. John Oh, MD
- Part D claims, 2024
- 1,299
- Hospital affiliations
- 1
- Industry payments
- $260
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 1425 S Main Street, Walnut Creek, CA 94596
- Practice phone
- Call (925) 295-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Oh'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. John Oh is a urologist in Walnut Creek, California
Dr. Oh practices at Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente.
Dr. Oh's NPI, 1649358730, was assigned on November 2, 2006. Dr. Oh graduated from Sidney Kimmel Medical College in 1997. Dr. Oh holds California license A83004.
- NPI
- 1649358730NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062308265
- NPI enumeration date
- November 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (925) 295-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Oh practices at Walnut Creek Medical Center in Walnut Creek, California
Dr. Oh's primary practice is Walnut Creek Medical Center, at 1425 S Main Street, Walnut Creek, CA 94596 in Contra Costa County. The practice phone is (925) 295-4000.
- Walnut Creek Medical Center1425 S Main Street, Walnut Creek, CA 94596 · Contra Costa CountyPhone(925) 295-4000
Source: Dmand AI Affiliation Data
Dr. John Oh is affiliated with 1 site of care and 1 medical group
Dr. Oh's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Oh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oh practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Walnut Creek Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. John Oh is one of 1,395 urologists in California
Urology is Dr. Oh's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Oh is board certified in urology by the American Board of Urology. Dmand AI has Dr. Oh's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Urology, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists urinary endoscopy among the conditions Dr. Oh treats.
Urologists near Dr. Oh
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. John Oh's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Oh's median patient age at 65, with 25% women.
Dr. Oh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women25%
- Men72%
Source: Dmand AI Patient Panel Data
Dr. John Oh wrote 1,299 Medicare Part D claims in 2024
In 2024, Dr. Oh wrote 1,299 Medicare Part D claims for 339 patients. 94% of them were for generic drugs. CMS names the drug for 1,232 of them, across 14 drugs with 11 or more claims each, at $77,267 in total drug cost. In 2023, CMS named 1,157 claims across 11 drugs.
Dr. Oh's Part D claims by kind of drug, 2024
- Generic1,223 claims94%
- Brand-name76 claims6%
Dr. Oh'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.
Drug classes CMS tracks in Dr. Oh's Part D claims, 2024
- Opioids3%39 of 1,299 claims
- Antibiotics13%173 of 1,299 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1572024: 1,2326%
Drugs named by CMS: 14 in 2024, 11 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
Dr. John Oh offers telehealth to Medicare patients
Dr. Oh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Oh as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Oh received $260 in industry payments from 2018 to 2025
CMS Open Payments shows 3 general payments to Dr. Oh from 3 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. ShockWave Medical, Inc paid the most, $128.
General payments to Dr. Oh by program year, 2018 to 2025
Companies that paid Dr. Oh the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Oh has 1 award and honors on record
Dmand AI lists 1 award for Dr. Oh, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Oh
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. John Oh graduated from Sidney Kimmel Medical College
Dr. Oh graduated from Sidney Kimmel Medical College in 1997.
- Medical school
- Board certified in urology
Source: Dmand AI Professional Profile Data
Dr. John Oh accepts plans from 2 insurance carriers
Dr. Oh is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Oh accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. John Oh'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John Oh
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. John Oh's NPI number?
Dr. John Oh's NPI number is 1649358730. It was assigned on November 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Oh?
Dr. John Oh is a urologist in Walnut Creek, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. John Oh practice?
Dr. Oh practices at 1425 S Main Street, Walnut Creek, CA 94596. Dr. Oh's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente.
What is Dr. John Oh's office phone number?
The practice phone on file for Dr. Oh is (925) 295-4000.
What is Dr. John Oh's medical license number?
Dr. Oh holds California license A83004, one of the licenses on file in 2 states.
Which states has Dr. John Oh been licensed in?
Dmand AI has state licenses on file for Dr. Oh in California (2003 to 2026) and Pennsylvania (1998 to 2004).
Which hospitals is Dr. John Oh affiliated with?
Dr. Oh practices at Walnut Creek Medical Center in Walnut Creek, California.
What medical group is Dr. John Oh part of?
Dr. Oh is linked to The Permanente Medical Group, Inc.
Does Dr. John Oh accept Medicare?
Yes. CMS lists Dr. Oh as accepting Medicare assignment.
Does Dr. John Oh offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Oh as offering telehealth services.
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Is Dr. John Oh board certified?
Yes. Dr. Oh is board certified in urology by the American Board of Urology.
Where did Dr. John Oh go to medical school?
Dr. Oh graduated from Sidney Kimmel Medical College in 1997.
What drugs does Dr. John Oh prescribe most?
In 2024 Medicare Part D data, Dr. Oh's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Terazosin HCl.
Has Dr. John Oh received payments from drug or device companies?
CMS Open Payments shows $260 in general payments to Dr. Oh from 3 companies from 2018 to 2025. The largest total came from ShockWave Medical, Inc.
How long has Dr. John Oh been practicing?
Dr. Oh graduated from medical school in 1997, 29 years ago.
What insurance does Dr. John Oh accept?
Dr. Oh is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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