Dr. Karen F. Han, MD
- Medicare services, 2024
- 3,823
- Medicare patients, 2024
- 486
- Part D claims, 2024
- 775
- Industry payments
- $4,126
- Affiliated sites
- 2
- Practice address
- 795 El Camino Real, Palo Alto, CA 94301
- Practice phone
- Call (650) 324-1832
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgery Center Palo Alto
Surgery Center - Medicare-Certified · Palo Alto, California
Find Dr. Han's professional email, personal email and mobile number
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Dr. Karen F. Han is a dermatologist in Palo Alto, California
Dr. Han practices at Surgery Center Palo Alto in Palo Alto, California.
Dr. Han's NPI, 1811908692, was assigned on August 10, 2006. Dr. Han graduated from Feinberg School of Medicine in 1998. Dr. Han holds California license A69817.
- NPI
- 1811908692NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951476852
- NPI enumeration date
- August 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 324-1832
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karen F. Han practices at Surgery Center Palo Alto in Palo Alto, California
Dr. Han's primary practice is Surgery Center Palo Alto, at 795 El Camino Real, Palo Alto, CA 94301. The practice phone is (650) 324-1832.
- Surgery Center Palo Alto795 El Camino Real, Palo Alto, CA 94301Phone(650) 324-1832
Source: Dmand AI Affiliation Data
Dr. Karen F. Han is affiliated with 2 sites of care and 1 medical group
Dr. Han's primary practice is Surgery Center Palo Alto in Palo Alto, California. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Han to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Karen F. Han's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Han practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgery Center Palo Alto | 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. Karen F. Han is one of 1,910 dermatologists in California
Dermatology is Dr. Han's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Han is board certified in dermatology by the American Board of Dermatology. Dr. Han is licensed in California.
Specialties and state licenses
- Dermatology, CaliforniaPrimary
Clinical focus
Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cancerous skin growth removal, cold sores or genital herpes, contact dermatitis, hives and itchy rashes among the conditions Dr. Han treats.
Dermatologists near Dr. Han
Counts of dermatologists 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. Karen F. Han billed Medicare for 3,823 services in 2024
CMS data shows 3,823 Medicare services from Dr. Han across 10 procedure codes in 2024, for 486 Medicare patients. Medicare paid $181,937 for them. Every service was in an office.
Dr. Han's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2,7702024: 2,8583%
- Office and hospital visits
- 2023: 9232024: 9655%
Dr. Han compared with the California median for dermatologists, 2024
- Dr. Han
- California median
- Medicare services
- 3,823vs 1,7502.2 times
- Medicare patients
- 486vs 37729% above
- Part D claims
- 657vs 36779% above
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
Dr. Han'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. Han?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Han and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen F. Han treated 486 Medicare patients in 2024, average age 77
CMS counts 486 Medicare patients who saw Dr. Han in 2024. The largest group is 75 to 84, with 225 patients. 70% of them have high cholesterol, and 53% have high blood pressure. Their average risk score is 0.77, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Han's median patient age at 69, with 58% women.
Dr. Han's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Han's Medicare patients by sex, 2024
- Women27056%
- Men21644%
Chronic conditions among Dr. Han's Medicare patients, 2024
- High cholesterol70%
- High blood pressure53%
- Arthritis33%
- Osteoporosis22%
- Ischemic heart disease20%
- Atrial fibrillation15%
- Cancer15%
- Mood disorders13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Han's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karen F. Han wrote 775 Medicare Part D claims in 2024
In 2024, Dr. Han wrote 775 Medicare Part D claims for 291 patients. 91% of them were for generic drugs. CMS names the drug for 657 of them, across 18 drugs with 11 or more claims each, at $207,086 in total drug cost. In 2023, CMS named 599 claims across 17 drugs.
Dr. Han's Part D claims by kind of drug, 2024
- Generic705 claims91%
- Brand-name70 claims9%
Dr. Han'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5992024: 65710%
Drugs named by CMS: 18 in 2024, 17 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. Karen F. Han ranks in the 95th percentile for removal of skin lesions in Medicare
Dr. Han accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 1,202 procedures of removal of skin lesions by Dr. Han, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Han ranks in Medicare procedure volume
- Removal of skin lesions
- 95th percentile1,202 procedures
- Skin biopsy
- 76th percentile107 procedures
- Melanoma (skin cancer) excision
- 84th percentile41 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Karen F. Han received $4,126 in industry payments from 2016 to 2025
CMS Open Payments shows 34 general payments to Dr. Han from 14 drug and device companies from 2016 to 2025. Gifts make up the largest share, 50% of the total. Allergan Inc. paid the most, $2,243.
General payments to Dr. Han by program year, 2016 to 2025
General payments to Dr. Han by kind, 2016 to 2025
- Gifts$2,05450%
- Food and beverage$1,76643%
- Education$3067%
Companies that paid Dr. Han the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Karen F. Han has 1 award and honors on record
Dmand AI lists 1 award for Dr. Han.
Awards and honors for Dr. Han
- Undated
- AAD Fellow
Source: Dmand AI Professional Profile Data
Dr. Karen F. Han graduated from Feinberg School of Medicine
Dr. Han graduated from Feinberg School of Medicine in 1998. Dr. Han is a member of AAD.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Dr. Karen F. Han accepts plans from 11 insurance carriers
Dr. Han is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +3 more carriersWith a free account
Plan types Dr. Han accepts, by number of carriers
- PPO7
- HMO6
- EPO4
- Medicare3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Karen F. Han'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)Doctors and Clinicians Utilization Data (CMS) (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. Karen F. Han
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. Karen F. Han's NPI number?
Dr. Karen F. Han's NPI number is 1811908692. It was assigned on August 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen F. Han?
Dr. Karen F. Han is a dermatologist in Palo Alto, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Karen F. Han practice?
Dr. Han practices at 795 El Camino Real, Palo Alto, CA 94301. Dr. Han's primary practice is Surgery Center Palo Alto in Palo Alto, California. Dmand AI also links Dr. Han to 1 group practice or clinic.
What is Dr. Karen F. Han's office phone number?
The practice phone on file for Dr. Han is (650) 324-1832.
What is Dr. Karen F. Han's medical license number?
Dr. Han holds California license A69817.
What medical group is Dr. Karen F. Han part of?
Dr. Han is linked to Palo Alto Foundation Medical Group.
Does Dr. Karen F. Han accept Medicare?
Yes. CMS data shows Dr. Han billed Medicare for 3,823 services in 2024, and Dr. Han accepts Medicare assignment.
How many Medicare patients does Dr. Karen F. Han see?
CMS counts 486 Medicare patients who saw Dr. Han in 2024, with an average age of 77.
Is Dr. Karen F. Han board certified?
Yes. Dr. Han is board certified in dermatology by the American Board of Dermatology.
What services does Dr. Karen F. Han bill to Medicare?
In 2024, Dr. Han's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99214) and surgery: skin and soft tissue (17000).
Show 5 more questionsShow fewer questions
Where did Dr. Karen F. Han go to medical school?
Dr. Han graduated from Feinberg School of Medicine in 1998.
What drugs does Dr. Karen F. Han prescribe most?
In 2024 Medicare Part D data, Dr. Han's most prescribed drugs by claims were Fluorouracil, Triamcinolone Acetonide and Metronidazole.
Has Dr. Karen F. Han received payments from drug or device companies?
CMS Open Payments shows $4,126 in general payments to Dr. Han from 14 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Karen F. Han been practicing?
Dr. Han graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Karen F. Han accept?
Dr. Han is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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