Dr. Winnie Lam, DO
- Part D claims, 2024
- 83
- Hospital affiliations
- 2
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 2105 Forest Avenue, San Jose, CA 95128
- Practice phone
- Call (408) 947-2831
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
O'Connor Hospital
Skilled Nursing Facility - Hospital-Based · San Jose, California
Find Dr. Lam'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. Winnie Lam is an emergency medicine physician in San Jose, California
Dr. Lam practices at O'Connor Hospital in San Jose, California.
Dr. Lam's NPI, 1205576410, was assigned on March 29, 2022. Dr. Lam holds California license 21878.
- NPI
- 1205576410NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032650726
- NPI enumeration date
- March 29, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 947-2831
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Winnie Lam practices at O'Connor Hospital in San Jose, California
Dr. Lam's primary practice is O'Connor Hospital, at 2105 Forest Avenue, San Jose, CA 95128 in Santa Clara County. The practice phone is (408) 947-2831.
- O'Connor Hospital2105 Forest Avenue, San Jose, CA 95128 · Santa Clara CountyPhone(408) 947-2831
Source: Dmand AI Affiliation Data
Dr. Winnie Lam is affiliated with 3 sites of care and 3 medical groups
Dr. Lam's primary practice is O'Connor Hospital in San Jose, California. Dr. Lam is also affiliated with Santa Clara Valley Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Lam to 1 more hospital and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Winnie Lam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lam practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| O'Connor Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Winnie Lam is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Lam's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Lam is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Lam
Counts of emergency medicine physicians 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. Winnie Lam's patients have a median age of 45
Across all payers, Dmand AI patient panel data puts Dr. Lam's median patient age at 45, with 55% women.
Dr. Lam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. Winnie Lam wrote 83 Medicare Part D claims in 2024
In 2024, Dr. Lam wrote 83 Medicare Part D claims for 60 patients. 90% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $59 in total drug cost.
Dr. Lam's Part D claims by kind of drug, 2024
- Generic75 claims90%
- Brand-name and other8 claims10%
Dr. Lam'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. Lam's Part D claims, 2024
- Antibiotics45%37 of 83 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Winnie Lam takes part in Medicare
Dr. Lam 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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Sources for Dr. Winnie Lam'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 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) |
| 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. Winnie Lam
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. Winnie Lam's NPI number?
Dr. Winnie Lam's NPI number is 1205576410. It was assigned on March 29, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Winnie Lam?
Dr. Winnie Lam is an emergency medicine physician in San Jose, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Winnie Lam practice?
Dr. Lam practices at 2105 Forest Avenue, San Jose, CA 95128. Dr. Lam's primary practice is O'Connor Hospital in San Jose, California. Dmand AI also links Dr. Lam to 1 hospital and 2 medical groups.
What is Dr. Winnie Lam's office phone number?
The practice phone on file for Dr. Lam is (408) 947-2831.
What is Dr. Winnie Lam's medical license number?
Dr. Lam holds California license 21878.
Which hospitals is Dr. Winnie Lam affiliated with?
Dr. Lam is affiliated with Santa Clara Valley Medical Center. Dmand AI links Dr. Lam to 1 more hospital.
What medical group is Dr. Winnie Lam part of?
Dr. Lam is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Lam to 2 more medical groups.
Does Dr. Winnie Lam accept Medicare?
Yes. CMS lists Dr. Lam as accepting Medicare assignment.
What drugs does Dr. Winnie Lam prescribe most?
In 2024 Medicare Part D data, Dr. Lam's most prescribed drugs by claims were Cephalexin.
How long has Dr. Winnie Lam been practicing?
Dr. Lam graduated from medical school in 2022, 4 years ago.
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