Dr. Kathleen Williams, DO
- Medicare services, 2022
- 135
- Part D claims, 2022
- 23
- Industry payments
- $210
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2182 East St, Concord, CA 94520
- Practice phone
- Call (925) 685-4224
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jiva Health, Inc
Concord, California
Find Dr. Williams' 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. Kathleen Williams is a pulmonologist in Concord, California
Dr. Williams practices at Jiva Health, Inc in Concord, California.
Dr. Williams' NPI, 1164480224, was assigned on May 1, 2006. Dr. Williams graduated from New York College of Osteo Medicine of New York Institute of Technology in 1995. Dr. Williams holds California license 20A9620.
- NPI
- 1164480224NPI Registry (opens in a new tab)
- NPI enumeration date
- May 1, 2006
- NPI status
- Active
- Practice phone
- (925) 685-4224
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Kathleen Williams practices at Jiva Health, Inc in Concord, California
Dr. Williams' primary practice is Jiva Health, Inc, at 2182 East St, Concord, CA 94520 in Contra Costa County. The practice phone is (925) 685-4224.
- Jiva Health, Inc2182 East St, Concord, CA 94520 · Contra Costa CountyPhone(925) 685-4224
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Kathleen Williams is affiliated with 2 sites of care and 1 medical group
Dr. Williams' primary practice is Jiva Health, Inc in Concord, California. The medical group on file is Jiva Health. Dmand AI also links Dr. Williams 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. Kathleen Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jiva Health, 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. Kathleen Williams is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dmand AI has Dr. Williams' licenses on file in 2 states: California and Oregon.
Specialties and state licenses
- Pulmonary disease, CaliforniaPrimary
- Internal medicine, Oregon
Pulmonologists near Dr. Williams
Counts of pulmonologists 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. Kathleen Williams billed Medicare for 135 services in 2022
CMS data shows 135 Medicare services from Dr. Williams across 5 procedure codes in 2022. Medicare paid $10,065 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams' Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 652022: 135108%
Dr. Williams compared with the California median for pulmonologists, 2022
- Dr. Williams
- California median
- Medicare services
- 135vs 64979% below
- Part D claims
- 23vs 42195% below
Medians across 1,263 pulmonologists in California with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2022
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. Williams and other pulmonologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kathleen Williams' patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 50, with 46% women.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women46%
- Men54%
Source: Dmand AI Patient Panel Data
Dr. Kathleen Williams wrote 23 Medicare Part D claims in 2022
In 2022, Dr. Williams wrote 23 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $351 in total drug cost. In 2021, CMS named 859 claims across 37 drugs.
Dr. Williams' most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 8592022: 2397%
Drugs named by CMS: 2 in 2022, 37 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Kathleen Williams received $210 in industry payments from 2019 to 2025
CMS Open Payments shows 7 general payments to Dr. Williams from 7 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Kite Pharma, Inc. paid the most, $89.
General payments to Dr. Williams by program year, 2019 to 2025
Companies that paid Dr. Williams the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kathleen Williams graduated from New York College of Osteo Medicine of New York Institute of Technology
Dr. Williams graduated from New York College of Osteo Medicine of New York Institute of Technology in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Kathleen Williams'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 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Kathleen Williams
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. Kathleen Williams' NPI number?
Dr. Kathleen Williams' NPI number is 1164480224. It was assigned on May 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kathleen Williams?
Dr. Kathleen Williams is a pulmonologist in Concord, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Kathleen Williams practice?
Dr. Williams practices at 2182 East St, Concord, CA 94520. Dr. Williams' primary practice is Jiva Health, Inc in Concord, California. Dmand AI also links Dr. Williams to 1 group practice or clinic.
What is Dr. Kathleen Williams' office phone number?
The practice phone on file for Dr. Williams is (925) 685-4224.
What is Dr. Kathleen Williams' medical license number?
Dr. Williams holds California license 20A9620, one of the licenses on file in 2 states.
Which states has Dr. Kathleen Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in California and Oregon.
What medical group is Dr. Kathleen Williams part of?
Dr. Williams is linked to Jiva Health.
Does Dr. Kathleen Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 135 services in 2022.
What services does Dr. Kathleen Williams bill to Medicare?
In 2022, Dr. Williams' most billed Medicare services were nursing facility care (99308), hospital inpatient care (99233) and hospital inpatient care (99239).
Where did Dr. Kathleen Williams go to medical school?
Dr. Williams graduated from New York College of Osteo Medicine of New York Institute of Technology in 1995.
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What drugs does Dr. Kathleen Williams prescribe most?
In 2022 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Levothyroxine Sodium and Omeprazole.
Has Dr. Kathleen Williams received payments from drug or device companies?
CMS Open Payments shows $210 in general payments to Dr. Williams from 7 companies from 2019 to 2025. The largest total came from Kite Pharma, Inc.
How long has Dr. Kathleen Williams been practicing?
Dr. Williams graduated from medical school in 1995, 31 years ago.
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