Dr. Pang-Yen Fan, MD
- Medicare services, 2024
- 1,201
- Medicare patients, 2024
- 327
- Part D claims, 2024
- 4,112
- MIPS score, 2024
- 100
- Hospital affiliations
- 5
- Practice address
- 55 North Ave, Mendon, MA 01756
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umass Memorial Medical Center
Mendon, Massachusetts
Find Dr. Fan'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. Pang-Yen Fan is a nephrologist in Mendon, Massachusetts
Dr. Fan practices at Umass Memorial Medical Center in Mendon, Massachusetts.
Dr. Fan's NPI, 1477536936, was assigned on November 29, 2005. Dr. Fan graduated from Boston University School of Medicine in 1985. Dr. Fan holds Massachusetts license 59692.
- NPI
- 1477536936NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799723862
- NPI enumeration date
- November 29, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Pang-Yen Fan practices at Umass Memorial Medical Center in Mendon, Massachusetts
Dr. Fan's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Center55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Pang-Yen Fan is affiliated with 6 sites of care and 1 medical group
Dr. Fan's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Fan is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Fan to 4 more hospitals, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Pang-Yen Fan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umass Memorial Medical Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Pang-Yen Fan is one of 351 nephrologists in Massachusetts
Nephrology is Dr. Fan's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Fan is licensed in Massachusetts.
Specialties and state licenses
- Nephrology, MassachusettsPrimary
Nephrologists near Dr. Fan
Counts of nephrologists 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. Pang-Yen Fan billed Medicare for 1,201 services in 2024
CMS data shows 1,201 Medicare services from Dr. Fan across 9 procedure codes in 2024, for 327 Medicare patients. Medicare paid $66,861 for them.
Dr. Fan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8162024: 8666%
- Other services
- 2023: 02024: 335
Where Dr. Fan's Medicare services took place, 2024
- In an office171%
- In a facility1,18499%
Dr. Fan compared with the Massachusetts median for nephrologists, 2024
- Dr. Fan
- Massachusetts median
- Medicare services
- 1,201vs 70171% above
- Medicare patients
- 327vs 28216% above
- Part D claims
- 3,745vs 4718.0 times
Medians across 333 nephrologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Fan'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Pang-Yen Fan treated 327 Medicare patients in 2024, average age 67
CMS counts 327 Medicare patients who saw Dr. Fan in 2024. The largest group is 65 to 74, with 121 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 50% are also on Medicaid. Their average risk score is 3.98, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Fan's median patient age at 69, with 39% women.
Dr. Fan's Medicare patients by age, 2024
Dr. Fan's Medicare patients by sex, 2024
- Women12839%
- Men19961%
Chronic conditions among Dr. Fan's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes60%
- Ischemic heart disease45%
- Heart failure41%
- Anxiety39%
- Arthritis39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fan'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
- Women39%
- Men61%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Pang-Yen Fan wrote 4,112 Medicare Part D claims in 2024
In 2024, Dr. Fan wrote 4,112 Medicare Part D claims for 252 patients. 93% of them were for generic drugs. CMS names the drug for 3,745 of them, across 62 drugs with 11 or more claims each, at $389,106 in total drug cost. In 2023, CMS named 4,201 claims across 75 drugs.
Dr. Fan's Part D claims by kind of drug, 2024
- Generic3,814 claims93%
- Brand-name and other298 claims7%
Dr. Fan'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. Fan's Part D claims, 2024
- Antibiotics2%87 of 4,112 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: 4,2012024: 3,74511%
Drugs named by CMS: 62 in 2024, 75 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. Pang-Yen Fan scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Fan for performance year 2024, reported through an alternative payment model (APM). Dr. Fan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Fan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Fan's MIPS scores, performance year 2024
- 100of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Pang-Yen Fan graduated from Boston University School of Medicine
Dr. Fan graduated from Boston University School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Pang-Yen Fan'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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Pang-Yen Fan
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. Pang-Yen Fan's NPI number?
Dr. Pang-Yen Fan's NPI number is 1477536936. It was assigned on November 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Pang-Yen Fan?
Dr. Pang-Yen Fan is a nephrologist in Mendon, Massachusetts. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Pang-Yen Fan practice?
Dr. Fan practices at 55 North Ave, Mendon, MA 01756. Dr. Fan's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dmand AI also links Dr. Fan to 4 hospitals.
What is Dr. Pang-Yen Fan's office phone number?
The practice phone on file for Dr. Fan is (508) 334-1000.
What is Dr. Pang-Yen Fan's medical license number?
Dr. Fan holds Massachusetts license 59692.
Which hospitals is Dr. Pang-Yen Fan affiliated with?
Dr. Fan is affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Fan to 4 more hospitals.
What medical group is Dr. Pang-Yen Fan part of?
Dr. Fan is linked to UMass Memorial Medical Group.
Does Dr. Pang-Yen Fan accept Medicare?
Yes. CMS data shows Dr. Fan billed Medicare for 1,201 services in 2024, and Dr. Fan accepts Medicare assignment.
Does Dr. Pang-Yen Fan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Fan as offering telehealth services.
What is Dr. Pang-Yen Fan's MIPS score?
Dr. Fan's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Pang-Yen Fan see?
CMS counts 327 Medicare patients who saw Dr. Fan in 2024, with an average age of 67.
What services does Dr. Pang-Yen Fan bill to Medicare?
In 2024, Dr. Fan's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and hospital inpatient care (99232).
Where did Dr. Pang-Yen Fan go to medical school?
Dr. Fan graduated from Boston University School of Medicine in 1985.
What drugs does Dr. Pang-Yen Fan prescribe most?
In 2024 Medicare Part D data, Dr. Fan's most prescribed drugs by claims were Amlodipine Besylate, Prednisone and Pantoprazole Sodium.
How long has Dr. Pang-Yen Fan been practicing?
Dr. Fan graduated from medical school in 1985, 41 years ago.
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