Dr. Kwong Y. Tan, MD
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 605
- Hospital affiliations
- 1
- 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. Tan'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. Kwong Y. Tan is a hospitalist in Walnut Creek, California
Dr. Tan practices at Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente.
Dr. Tan's NPI, 1477605699, was assigned on January 17, 2007. Dr. Tan graduated from Tufts University School Of Medicine in 1999. Dr. Tan holds California license A75685.
- NPI
- 1477605699NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224004411
- NPI enumeration date
- January 17, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 295-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kwong Y. Tan practices at Walnut Creek Medical Center in Walnut Creek, California
Dr. Tan'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. Kwong Y. Tan is affiliated with 1 site of care and 1 medical group
Dr. Tan'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. Kwong Y. Tan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tan 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
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Dr. Kwong Y. Tan is one of 3,186 hospitalists in California
Hospitalist is Dr. Tan's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Tan is board certified in internal medicine by the American Board of Internal Medicine. Dr. Tan is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Clinical focus
Dmand AI lists sepsis among the conditions Dr. Tan treats.
Hospitalists near Dr. Tan
Counts of hospitalists 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. Kwong Y. Tan treated 13 Medicare patients in 2024, average age 71
CMS counts 13 Medicare patients who saw Dr. Tan in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 5.13, 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. Tan's median patient age at 77, with 48% women.
Chronic conditions among Dr. Tan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kwong Y. Tan wrote 605 Medicare Part D claims in 2024
In 2024, Dr. Tan wrote 605 Medicare Part D claims for 183 patients. 87% of them were for generic drugs. CMS names the drug for 360 of them, across 19 drugs with 11 or more claims each, at $5,533 in total drug cost. In 2023, CMS named 428 claims across 21 drugs.
Dr. Tan's Part D claims by kind of drug, 2024
- Generic524 claims87%
- Brand-name and other81 claims13%
Dr. Tan'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. Tan's Part D claims, 2024
- Antibiotics14%86 of 605 claims
- Antipsychotics, patients 65 and over3%17 of 605 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: 4282024: 36016%
Drugs named by CMS: 19 in 2024, 21 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. Kwong Y. Tan takes part in Medicare
Dr. Tan 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. Kwong Y. Tan graduated from Tufts University School Of Medicine
Dr. Tan graduated from Tufts University School Of Medicine in 1999.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Kwong Y. Tan accepts plans from 2 insurance carriers
Dr. Tan 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. Tan accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Kwong Y. Tan'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 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) |
| 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. Kwong Y. Tan
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. Kwong Y. Tan's NPI number?
Dr. Kwong Y. Tan's NPI number is 1477605699. It was assigned on January 17, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Kwong Y. Tan?
Dr. Kwong Y. Tan is a hospitalist in Walnut Creek, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Kwong Y. Tan practice?
Dr. Tan practices at 1425 S Main Street, Walnut Creek, CA 94596. Dr. Tan's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente.
What is Dr. Kwong Y. Tan's office phone number?
The practice phone on file for Dr. Tan is (925) 295-4000.
What is Dr. Kwong Y. Tan's medical license number?
Dr. Tan holds California license A75685.
Which hospitals is Dr. Kwong Y. Tan affiliated with?
Dr. Tan practices at Walnut Creek Medical Center in Walnut Creek, California.
What medical group is Dr. Kwong Y. Tan part of?
Dr. Tan is linked to The Permanente Medical Group, Inc.
Does Dr. Kwong Y. Tan accept Medicare?
Yes. CMS lists Dr. Tan as accepting Medicare assignment.
How many Medicare patients does Dr. Kwong Y. Tan see?
CMS counts 13 Medicare patients who saw Dr. Tan in 2024, with an average age of 71.
Is Dr. Kwong Y. Tan board certified?
Yes. Dr. Tan is board certified in internal medicine by the American Board of Internal Medicine.
Show 4 more questionsShow fewer questions
Where did Dr. Kwong Y. Tan go to medical school?
Dr. Tan graduated from Tufts University School Of Medicine in 1999.
What drugs does Dr. Kwong Y. Tan prescribe most?
In 2024 Medicare Part D data, Dr. Tan's most prescribed drugs by claims were Furosemide, Metoprolol Succinate and Cefpodoxime Proxetil.
How long has Dr. Kwong Y. Tan been practicing?
Dr. Tan graduated from medical school in 1999, 27 years ago.
What insurance does Dr. Kwong Y. Tan accept?
Dr. Tan 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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