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Dr. Andrew Chi, MD
NPI1316109804PAC ID5597914713
- Medicare services, 2024
- 11
- Medicare patients, 2024
- 27
- Part D claims, 2024
- 1,894
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 975 Sereno Dr, Vallejo, CA 94589
- Practice phone
- Call (707) 651-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chi'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. Andrew Chi is a urologist in Vallejo, California
Dr. Chi practices at Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente.
Dr. Chi's NPI, 1316109804, was assigned on June 26, 2008. Dr. Chi graduated from UT Southwestern Medical Center in 2007. Dr. Chi holds Florida license TRN10891.
NPI and contact details
- NPI
- 1316109804NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597914713
- NPI enumeration date
- June 26, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (707) 651-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew Chi practices at Vallejo Medical Center in Vallejo, California
Dr. Chi's primary practice is Vallejo Medical Center, at 975 Sereno Dr, Vallejo, CA 94589 in Solano County. The practice phone is (707) 651-1000.
- Vallejo Medical Center975 Sereno Dr, Vallejo, CA 94589 · Solano CountyPhone(707) 651-1000
Source: Dmand AI Affiliation Data
Dr. Andrew Chi is affiliated with 5 sites of care and 3 medical groups
Dr. Chi's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Chi to 2 more group practices and clinics, 2 medical groups, 1 home health agency and 1 hospice, each named with a free account.
The Permanente Medical Group, Inc.2 group practices and clinicsNames with a free account2 medical groupsNames with a free account1 home health agencyName with a free account1 hospiceName with a free account
See all 8 affiliations for Dr. ChiSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Andrew Chi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chi practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vallejo Medical Center | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew Chi is one of 1,395 urologists in California
Urology is Dr. Chi's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Chi is board certified in urology by the American Board of Urology. Dmand AI has Dr. Chi's licenses on file in 2 states: Florida and California.
Specialties and state licenses
- Urology, FloridaPrimary
- California license
Clinical focus
Dmand AI lists enlarged prostate transurethral surgery (TURP) and urinary endoscopy among the conditions Dr. Chi treats.
Urologists near Dr. Chi
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. Andrew Chi billed Medicare for 11 services in 2024
CMS data shows 11 Medicare services from Dr. Chi across 1 procedure code in 2024, for 27 Medicare patients. Medicare paid $517 for them. Every service was in an office.
Medicare services, 202411
Medicare patients27
Paid by Medicare$517
Procedure codes1
Dr. Chi compared with the California median for urologists, 2024
- Dr. Chi
- California median
- Medicare services
- 11vs 1,05099% below
- Medicare patients
- 27vs 34692% below
- Part D claims
- 1,797vs 6422.8 times
Medians across 1,310 urologists in California with Dmand AI profiles that report each measure.
Dr. Chi's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chi and other urologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Andrew Chi treated 27 Medicare patients in 2024, average age 64
CMS counts 27 Medicare patients who saw Dr. Chi in 2024. The largest group is 65 to 74, with 12 patients. 67% of them have high blood pressure, and 41% have arthritis. 48% are also on Medicaid. Their average risk score is 2.27, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chi's median patient age at 65, with 26% women.
Medicare patients, 202427
Average age64
Average risk score2.27
Also on Medicaid48%
Dr. Chi's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Chi's Medicare patients, 2024
- High blood pressure67%
- Arthritis41%
- High cholesterol41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chi'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
- Women26%
- Men73%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew Chi wrote 1,894 Medicare Part D claims in 2024
In 2024, Dr. Chi wrote 1,894 Medicare Part D claims for 591 patients. 97% of them were for generic drugs. CMS names the drug for 1,797 of them, across 17 drugs with 11 or more claims each, at $83,601 in total drug cost. In 2023, CMS named 1,668 claims across 19 drugs.
Part D claims, 20241,894
Drugs named by CMS17
Total drug cost$83,601
Part D patients591
Dr. Chi's Part D claims by kind of drug, 2024
- Generic1,834 claims97%
- Brand-name and other60 claims3%
Dr. Chi'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. Chi's Part D claims, 2024
- Opioids5%104 of 1,894 claims
- Antibiotics11%202 of 1,894 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: 1,6682024: 1,7978%
Drugs named by CMS: 17 in 2024, 19 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. Andrew Chi offers telehealth to Medicare patients
Dr. Chi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chi as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Andrew Chi has 3 publications on record
Dmand AI links 3 papers to Dr. Chi, published from 2011 to 2014. The most frequent topics are Adenoma, Oxyphilic, Biomarkers, Tumor and Carcinoma, Renal Cell. Dr. Chi has published most often in Cancer. Dr. Chi's most frequent co-authors are Vincent Gerard Bird, MD, Philippe Armand, MD, PhD and Rajinikanth Ayyathurai, MD.
Papers3
Years published2011 to 2014
Dr. Chi's papers by year, 2011 to 2014
Topics Dr. Chi writes about most
- Adenoma, Oxyphilic
- Biomarkers, Tumor
- Carcinoma, Renal Cell
- Kidney Neoplasms
- Neoplasm Metastasis
Dr. Chi's most frequent co-authors
- Vincent Gerard Bird, MD2 shared papers
- Philippe Armand, MD, PhD1 shared paper
- Rajinikanth Ayyathurai, MD1 shared paper
Recent publications by Dr. Chi
Adenoma, OxyphilicBiomarkers, TumorCarcinoma, Renal Cell
Adenoma, OxyphilicBiomarkers, TumorCarcinoma, Renal Cell
See who Dr. Chi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chi works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Andrew Chi received $221 in industry payments from 2019 to 2024
CMS Open Payments shows 5 general payments to Dr. Chi from 5 drug and device companies from 2019 to 2024. Food and beverage make up the largest share, 100% of the total. Medtronic USA, Inc. paid the most, $113.
General payments to Dr. Chi by program year, 2019 to 2024
Companies that paid Dr. Chi the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Andrew Chi graduated from UT Southwestern Medical Center
Dr. Chi graduated from UT Southwestern Medical Center in 2007.
- Medical school
- Board certified in urology
Source: Dmand AI Professional Profile Data
Dr. Andrew Chi accepts plans from 2 insurance carriers
Dr. Chi 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. Chi accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Andrew Chi'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (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. Andrew Chi
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. Andrew Chi's NPI number?
Dr. Andrew Chi's NPI number is 1316109804. It was assigned on June 26, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew Chi?
Dr. Andrew Chi is a urologist in Vallejo, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Andrew Chi practice?
Dr. Chi practices at 975 Sereno Dr, Vallejo, CA 94589. Dr. Chi's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dmand AI also links Dr. Chi to 2 group practices and clinics, 2 medical groups, 1 home health agency and 1 hospice.
What is Dr. Andrew Chi's office phone number?
The practice phone on file for Dr. Chi is (707) 651-1000.
What is Dr. Andrew Chi's medical license number?
Dr. Chi holds Florida license TRN10891, one of the licenses on file in 2 states.
Which states has Dr. Andrew Chi been licensed in?
Dmand AI has state licenses on file for Dr. Chi in Florida (since 2013) and California (2012 to 2025).
Which hospitals is Dr. Andrew Chi affiliated with?
Dr. Chi practices at Vallejo Medical Center in Vallejo, California.
What medical group is Dr. Andrew Chi part of?
Dr. Chi is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Chi to 2 more medical groups.
Does Dr. Andrew Chi accept Medicare?
Yes. CMS data shows Dr. Chi billed Medicare for 11 services in 2024, and Dr. Chi accepts Medicare assignment.
Does Dr. Andrew Chi offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chi as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Andrew Chi see?
CMS counts 27 Medicare patients who saw Dr. Chi in 2024, with an average age of 64.
Is Dr. Andrew Chi board certified?
Yes. Dr. Chi is board certified in urology by the American Board of Urology.
What services does Dr. Andrew Chi bill to Medicare?
In 2024, Dr. Chi's most billed Medicare services were care management and other visits (99441).
Where did Dr. Andrew Chi go to medical school?
Dr. Chi graduated from UT Southwestern Medical Center in 2007.
What drugs does Dr. Andrew Chi prescribe most?
In 2024 Medicare Part D data, Dr. Chi's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Trospium Chloride.
Has Dr. Andrew Chi received payments from drug or device companies?
CMS Open Payments shows $221 in general payments to Dr. Chi from 5 companies from 2019 to 2024. The largest total came from Medtronic USA, Inc.
How long has Dr. Andrew Chi been practicing?
Dr. Chi graduated from medical school in 2007, 19 years ago.
Does Dr. Andrew Chi do research?
Dmand AI links 3 publications to Dr. Chi, published from 2011 to 2014.
Who does Dr. Andrew Chi publish with?
Dr. Chi's most frequent co-authors are Vincent Gerard Bird, MD (2 shared papers), Philippe Armand, MD, PhD (1 shared paper) and Rajinikanth Ayyathurai, MD (1 shared paper).
What insurance does Dr. Andrew Chi accept?
Dr. Chi 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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