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Dr. Joanne Quan, MD
NPI1881771715PAC ID2163486226
- Part D claims, 2024
- 4,491
- Publications
- 4
- Clinical trials
- 1
- Industry payments
- $42
- Affiliated sites
- 1
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
Find Dr. Quan'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. Joanne Quan is an internist in Santa Clara, California
Dr. Quan practices at Permanente Medical Group Inc in Santa Clara, California.
Dr. Quan's NPI, 1881771715, was assigned on October 31, 2006. Dr. Quan graduated from New York Medical College in 1997. Dr. Quan's California license number on file is A87043.
NPI and contact details
- NPI
- 1881771715NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163486226
- NPI enumeration date
- October 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joanne Quan practices at Permanente Medical Group Inc in Santa Clara, California
Dr. Quan's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joanne Quan is affiliated with 2 sites of care and 1 medical group
Dr. Quan's primary practice is Permanente Medical Group Inc in Santa Clara, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Quan to 1 more group practice or clinic, named with a free account.
Permanente Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Joanne Quan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Quan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group 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. Joanne Quan is one of 16,751 internists in California
Internal medicine is Dr. Quan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Quan is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Quan's licenses on file in 2 states: California and Oregon.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Oregon license
Clinical focus
Dmand AI lists hemorrhoids, knee injury, rash, swimmer's ear and upper respiratory infection (URI) among the conditions Dr. Quan treats.
Internists near Dr. Quan
Counts of internists 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. Joanne Quan's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Quan's median patient age at 55, with 71% women.
Dr. Quan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women71%
- Men28%
Source: Dmand AI Patient Panel Data
Dr. Joanne Quan wrote 4,491 Medicare Part D claims in 2024
In 2024, Dr. Quan wrote 4,491 Medicare Part D claims for 638 patients. 91% of them were for generic drugs. CMS names the drug for 3,816 of them, across 96 drugs with 11 or more claims each, at $139,255 in total drug cost. In 2023, CMS named 3,473 claims across 87 drugs.
Part D claims, 20244,491
Drugs named by CMS96
Total drug cost$139,255
Part D patients638
Dr. Quan's Part D claims by kind of drug, 2024
- Generic4,086 claims91%
- Brand-name364 claims8%
- Other41 claims1%
Dr. Quan'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. Quan's Part D claims, 2024
- Opioids3%128 of 4,491 claims
- Antibiotics4%195 of 4,491 claims
- Antipsychotics, patients 65 and over0%21 of 4,491 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: 3,4732024: 3,81610%
Drugs named by CMS: 96 in 2024, 87 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. Joanne Quan takes part in Medicare
Dr. Quan 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. Joanne Quan has 4 publications on record
Dmand AI links 4 papers to Dr. Quan, published from 2013 to 2024. Dr. Quan's most frequent co-authors are James B. Gibson, MD, Peter Gottlieb, MD and Ryan Wallace Himes, MD.
Papers4
Years published2013 to 2024
Dr. Quan's papers by year, 2013 to 2024
Dr. Quan's most frequent co-authors
- James B. Gibson, MD1 shared paper
- Peter Gottlieb, MD1 shared paper
- Ryan Wallace Himes, MD1 shared paper
Recent publications by Dr. Quan
AutoantibodiesAutoantigensAutoimmune Diseases
See who Dr. Quan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Quan works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joanne Quan has worked on 1 clinical trial
Dmand AI links Dr. Quan to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Muscle Weakness and Muscular Atrophy.
Conditions in Dr. Quan's trials
- Muscle Weakness
- Muscular Atrophy
Recent clinical trials with Dr. Quan
An Open-Label Study of Continuation Treatment With Combination Pyrimidine Nucleosides in Patients With TK2 Deficiency (opens in a new tab)
Active, not recruitingPhase 2
Muscle WeaknessMuscular AtrophyDoxecitine and doxribtimine
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Joanne Quan received $42 in industry payments in 2016
CMS Open Payments shows 2 general payments to Dr. Quan from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $42.
Companies that paid Dr. Quan the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joanne Quan has 1 award and honors on record
Dmand AI lists 1 award for Dr. Quan, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Quan
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Joanne Quan graduated from New York Medical College
Dr. Quan graduated from New York Medical College in 1997.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Joanne Quan accepts plans from 2 insurance carriers
Dr. Quan 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. Quan accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Joanne Quan'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Joanne Quan
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. Joanne Quan's NPI number?
Dr. Joanne Quan's NPI number is 1881771715. It was assigned on October 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joanne Quan?
Dr. Joanne Quan is an internist in Santa Clara, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Joanne Quan practice?
Dr. Quan practices at 710 Lawrence Expy, Santa Clara, CA 95051. Dr. Quan's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dmand AI also links Dr. Quan to 1 group practice or clinic.
What is Dr. Joanne Quan's office phone number?
The practice phone on file for Dr. Quan is (408) 851-1000.
What is Dr. Joanne Quan's medical license number?
Dr. Quan's California license number on file is A87043, one of the licenses on file in 2 states.
Which states has Dr. Joanne Quan been licensed in?
Dmand AI has state licenses on file for Dr. Quan in California (2004 to 2025) and Oregon (since 2000).
What medical group is Dr. Joanne Quan part of?
Dr. Quan is linked to The Permanente Medical Group, Inc.
Does Dr. Joanne Quan accept Medicare?
Yes. CMS lists Dr. Quan as accepting Medicare assignment.
Is Dr. Joanne Quan board certified?
Yes. Dr. Quan is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Joanne Quan go to medical school?
Dr. Quan graduated from New York Medical College in 1997.
Show 6 more questionsShow fewer questions
What drugs does Dr. Joanne Quan prescribe most?
In 2024 Medicare Part D data, Dr. Quan's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Losartan Potassium.
Has Dr. Joanne Quan received payments from drug or device companies?
CMS Open Payments shows $42 in general payments to Dr. Quan from 1 company from 2016 to 2016. The largest total came from Allergan Inc.
How long has Dr. Joanne Quan been practicing?
Dr. Quan graduated from medical school in 1997, 29 years ago.
Does Dr. Joanne Quan do research?
Dmand AI links 4 publications to Dr. Quan, published from 2013 to 2024. Dr. Quan has worked on 1 clinical trial.
Who does Dr. Joanne Quan publish with?
Dr. Quan's most frequent co-authors are James B. Gibson, MD (1 shared paper), Peter Gottlieb, MD (1 shared paper) and Ryan Wallace Himes, MD (1 shared paper).
What insurance does Dr. Joanne Quan accept?
Dr. Quan 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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