Exp Biol Med (Maywood)
Dr. Fang Tan, MD
- Medicare services, 2024
- 2,242
- Medicare patients, 2024
- 812
- Part D claims, 2024
- 1,307
- Publications
- 8
- MIPS score, 2024
- 80
- Practice address
- 1895 Mowry Ave, Fremont, CA 94538-1708
- Practice phone
- Call (510) 793-2800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fang Tan MD, Inc.
Physician office · Fremont, California
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. Fang Tan is an ophthalmologist in Fremont, California
Dr. Tan practices at Fang Tan MD, Inc. in Fremont, California.
Dr. Tan's NPI, 1811997646, was assigned on July 22, 2005. Dr. Tan graduated from Shanghai Jiao Tong University School of Medicine in 1982. Dr. Tan holds California license A81026.
- NPI
- 1811997646NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941288856
- NPI enumeration date
- July 22, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 793-2800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Fang Tan practices at Fang Tan MD, Inc. in Fremont, California
Dr. Tan's primary practice is Fang Tan MD, Inc., at 1895 Mowry Ave, Fremont, CA 94538-1708. The practice phone is (510) 793-2800.
- Fang Tan MD, Inc.1895 Mowry Ave, Fremont, CA 94538-1708Phone(510) 793-2800
Source: Dmand AI Affiliation Data
Dr. Fang Tan is affiliated with 1 site of care
Dr. Tan's primary practice is Fang Tan MD, Inc. in Fremont, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Fang 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 |
|---|---|
| Fang Tan MD, Inc. | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Fang Tan is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Tan's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Tan is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Tan is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cold sores or genital herpes, conjunctivitis, dry eye, eye infection or inflammation, eyelid inflammation and glaucoma among the conditions Dr. Tan treats.
Ophthalmologists near Dr. Tan
Counts of ophthalmologists 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. Fang Tan billed Medicare for 2,242 services in 2024
CMS data shows 2,242 Medicare services from Dr. Tan across 10 procedure codes in 2024, for 812 Medicare patients. Medicare paid $155,143 for them. Every service was in an office.
Dr. Tan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,3082024: 1,2842%
- Office and hospital visits
- 2023: 9482024: 947No change
- Imaging
- 2023: 02024: 11
Dr. Tan compared with the California median for ophthalmologists, 2024
- Dr. Tan
- California median
- Medicare services
- 2,242vs 1,0792.1 times
- Medicare patients
- 812vs 42193% above
- Part D claims
- 1,250vs 6182.0 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Tan'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. Tan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tan and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Fang Tan treated 812 Medicare patients in 2024, average age 77
CMS counts 812 Medicare patients who saw Dr. Tan in 2024. The largest group is 65 to 74, with 347 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 83% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tan's median patient age at 72, with 61% women.
Dr. Tan's Medicare patients by age, 2024
Dr. Tan's Medicare patients by sex, 2024
- Women52865%
- Men28435%
Chronic conditions among Dr. Tan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes50%
- Arthritis35%
- Osteoporosis31%
- Ischemic heart disease30%
- Chronic kidney disease26%
- Heart failure19%
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 72
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Fang Tan wrote 1,307 Medicare Part D claims in 2024
In 2024, Dr. Tan wrote 1,307 Medicare Part D claims for 335 patients. 60% of them were for generic drugs. CMS names the drug for 1,250 of them, across 17 drugs with 11 or more claims each, at $229,004 in total drug cost. In 2023, CMS named 1,212 claims across 19 drugs.
Dr. Tan's Part D claims by kind of drug, 2024
- Generic787 claims60%
- Brand-name520 claims40%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2122024: 1,2503%
Drugs named by CMS: 17 in 2024, 19 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. Fang Tan scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Tan for performance year 2024, reported individually. Dr. Tan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Tan's MIPS scores, performance year 2024
- 80of 100Final score
- 49.1of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Fang Tan has 8 publications on record
Dmand AI links 8 papers to Dr. Tan, published from 2010 to 2016. The most frequent topics are Cell Line, Tumor, Gene Expression Regulation, Neoplastic and Anemia, Sickle Cell. Dr. Tan's most frequent co-authors are Michael F. Marmor, MD, Wai-Kwan A. Yung, MD and Zachariah W. Chambers, MD.
Dr. Tan's papers by year, 2010 to 2016
Topics Dr. Tan writes about most
- Cell Line, Tumor
- Gene Expression Regulation, Neoplastic
- Anemia, Sickle Cell
- Breast Neoplasms
- Electroretinography
- Eye Proteins
- Glioblastoma
- Heme
Dr. Tan's most frequent co-authors
- Michael F. Marmor, MD2 shared papers
- Wai-Kwan A. Yung, MD2 shared papers
- Zachariah W. Chambers, MD1 shared paper
Recent publications by Dr. Tan
BMC Cancer
See who Dr. Tan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tan works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Fang Tan received $872 in industry payments from 2016 to 2024
CMS Open Payments shows 21 general payments to Dr. Tan from 16 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 98% of the total. St. Jude Medical, Inc. paid the most, $287.
General payments to Dr. Tan by program year, 2016 to 2024
General payments to Dr. Tan by kind, 2016 to 2024
- Food and beverage$85498%
- Education$182%
Companies that paid Dr. Tan the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Fang Tan has 1 award and honors on record
Dmand AI lists 1 award for Dr. Tan.
Awards and honors for Dr. Tan
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Fang Tan graduated from Shanghai Jiao Tong University School of Medicine
Dr. Tan graduated from Shanghai Jiao Tong University School of Medicine in 1982. Dr. Tan is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Fang Tan accepts plans from 14 insurance carriers
Dr. Tan is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +6 more carriersWith a free account
Plan types Dr. Tan accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Fang 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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 |
| 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. Fang 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. Fang Tan's NPI number?
Dr. Fang Tan's NPI number is 1811997646. It was assigned on July 22, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Fang Tan?
Dr. Fang Tan is an ophthalmologist in Fremont, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Fang Tan practice?
Dr. Tan practices at 1895 Mowry Ave, Fremont, CA 94538-1708. Dr. Tan's primary practice is Fang Tan MD, Inc. in Fremont, California.
What is Dr. Fang Tan's office phone number?
The practice phone on file for Dr. Tan is (510) 793-2800.
What is Dr. Fang Tan's medical license number?
Dr. Tan holds California license A81026.
Does Dr. Fang Tan accept Medicare?
Yes. CMS data shows Dr. Tan billed Medicare for 2,242 services in 2024, and Dr. Tan accepts Medicare assignment.
What is Dr. Fang Tan's MIPS score?
Dr. Tan's MIPS final score for performance year 2024 is 80 out of 100, reported individually.
How many Medicare patients does Dr. Fang Tan see?
CMS counts 812 Medicare patients who saw Dr. Tan in 2024, with an average age of 77.
Is Dr. Fang Tan board certified?
Yes. Dr. Tan is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Fang Tan bill to Medicare?
In 2024, Dr. Tan's most billed Medicare services were eye exam or test (92250), office visit, established patient (99214) and office visit, established patient (99213).
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Where did Dr. Fang Tan go to medical school?
Dr. Tan graduated from Shanghai Jiao Tong University School of Medicine in 1982.
What drugs does Dr. Fang Tan prescribe most?
In 2024 Medicare Part D data, Dr. Tan's most prescribed drugs by claims were Azelastine HCl, Latanoprost and Brimonidine Tartrate.
Has Dr. Fang Tan received payments from drug or device companies?
CMS Open Payments shows $872 in general payments to Dr. Tan from 16 companies from 2016 to 2024. The largest total came from St. Jude Medical, Inc.
How long has Dr. Fang Tan been practicing?
Dr. Tan graduated from medical school in 1982, 44 years ago.
Does Dr. Fang Tan do research?
Dmand AI links 8 publications to Dr. Tan, published from 2010 to 2016.
Who does Dr. Fang Tan publish with?
Dr. Tan's most frequent co-authors are Michael F. Marmor, MD (2 shared papers), Wai-Kwan A. Yung, MD (2 shared papers) and Zachariah W. Chambers, MD (1 shared paper).
What insurance does Dr. Fang Tan accept?
Dr. Tan is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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