Joyce Tam
- Medicare patients, 2024
- 89
- Part D claims, 2024
- 213
- Hospital affiliations
- 2
- Industry payments
- $125
- Medical groups
- 2
- Practice address
- 3825 Highland Ave, Downers Grove, IL 60515
- Practice phone
- Call (847) 390-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Advocate Medical Group
Downers Grove, Illinois
Find Joyce Tam'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.
Joyce Tam is a nurse practitioner in Downers Grove, Illinois
Joyce Tam practices at Advocate Medical Group in Downers Grove, Illinois.
Joyce Tam's NPI, 1740658533, was assigned on September 10, 2015. Joyce Tam holds Illinois license 209013241.
- NPI
- 1740658533NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658677455
- NPI enumeration date
- September 10, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (847) 390-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Joyce Tam practices at Advocate Medical Group in Downers Grove, Illinois
Joyce Tam's primary practice is Advocate Medical Group, at 3825 Highland Ave, Downers Grove, IL 60515 in Dupage County. The practice phone is (847) 390-5900.
- Advocate Medical Group3825 Highland Ave, Downers Grove, IL 60515 · Dupage CountyPhone(847) 390-5900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Joyce Tam is affiliated with 5 sites of care and 2 medical groups
Joyce Tam's primary practice is Advocate Medical Group in Downers Grove, Illinois. Joyce Tam is also affiliated with Advocate Good Samaritan Hospital. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Joyce Tam to 1 more hospital, 2 group practices and clinics and 1 medical group, each 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 Joyce Tam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joyce Tam practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Medical Group | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Joyce Tam is one of 4,254 nurse practitioners in Illinois
Nurse practitioner is Joyce Tam's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Joyce Tam is licensed in Illinois.
Specialties and state licenses
- Nurse practitioner, IllinoisPrimary
Nurse practitioners near Joyce Tam
Counts of nurse practitioners 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
Joyce Tam treated 89 Medicare patients in 2024, average age 77
CMS counts 89 Medicare patients who saw Joyce Tam in 2024. The largest group is 75 to 84, with 33 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.11, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Joyce Tam's median patient age at 72, with 37% women.
Joyce Tam's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Joyce Tam's Medicare patients by sex, 2024
- Women4551%
- Men4449%
Chronic conditions among Joyce Tam's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA75%
- Atrial fibrillation53%
- Ischemic heart disease52%
- Arthritis51%
- Diabetes48%
- Heart failure45%
Share of Medicare patients with each condition. A patient can have several.
Joyce Tam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women37%
- Men63%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joyce Tam wrote 213 Medicare Part D claims in 2024
In 2024, Joyce Tam wrote 213 Medicare Part D claims for 57 patients. 88% of them were for generic drugs.
Joyce Tam's Part D claims by kind of drug, 2024
- Generic188 claims88%
- Brand-name25 claims12%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Joyce Tam offers telehealth to Medicare patients
Joyce Tam accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Joyce Tam as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Joyce Tam received $125 in industry payments in 2025
CMS Open Payments shows 1 general payment to Joyce Tam from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. SK Life Science, Inc. paid the most, $125.
Companies that paid Joyce Tam the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Joyce Tam'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | 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) |
| 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 Joyce Tam
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joyce Tam's NPI number?
Joyce Tam's NPI number is 1740658533. It was assigned on September 10, 2015, and it is active in the NPI Registry.
What does Joyce Tam specialize in?
Joyce Tam is a nurse practitioner in Downers Grove, Illinois. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Joyce Tam practice?
Joyce Tam practices at 3825 Highland Ave, Downers Grove, IL 60515. Joyce Tam's primary practice is Advocate Medical Group in Downers Grove, Illinois. Dmand AI also links Joyce Tam to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Joyce Tam's office phone number?
The practice phone on file for Joyce Tam is (847) 390-5900.
What is Joyce Tam's medical license number?
Joyce Tam holds Illinois license 209013241.
Which hospitals is Joyce Tam affiliated with?
Joyce Tam is affiliated with Advocate Good Samaritan Hospital. Dmand AI links Joyce Tam to 1 more hospital.
What medical group is Joyce Tam part of?
Joyce Tam is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Joyce Tam to 1 more medical group.
Does Joyce Tam accept Medicare?
Yes. CMS lists Joyce Tam as accepting Medicare assignment.
Does Joyce Tam offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Joyce Tam as offering telehealth services.
How many Medicare patients does Joyce Tam see?
CMS counts 89 Medicare patients who saw Joyce Tam in 2024, with an average age of 77.
Has Joyce Tam received payments from drug or device companies?
CMS Open Payments shows $125 in general payments to Joyce Tam from 1 company from 2025 to 2025. The largest total came from SK Life Science, Inc.
How long has Joyce Tam been practicing?
Joyce Tam graduated from medical school in 2015, 11 years ago.
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