Dr. Dennis Namphong Phan, MD
- Medicare services, 2024
- 59,610
- Medicare patients, 2024
- 896
- Part D claims, 2024
- 2,078
- Hospital affiliations
- 4
- Industry payments
- $10,522
- Practice address
- 7800 Arroyo Cir, Gilroy, CA 95020
- Practice phone
- Call (408) 848-5410
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Satellite Healthcare Gilroy
Gilroy, California
Find Dr. Phan'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. Dennis Namphong Phan is a nephrologist in Gilroy, California
Dr. Phan practices at Satellite Healthcare Gilroy in Gilroy, California.
Dr. Phan's NPI, 1437238342, was assigned on November 2, 2006. Dr. Phan graduated from Lewis Katz School of Medicine in 2000. Dr. Phan's California license number on file is A767040.
- NPI
- 1437238342NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668416314
- NPI enumeration date
- November 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 848-5410
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dennis Namphong Phan practices at Satellite Healthcare Gilroy in Gilroy, California
Dr. Phan's primary practice is Satellite Healthcare Gilroy, at 7800 Arroyo Cir, Gilroy, CA 95020 in Santa Clara County. The practice phone is (408) 848-5410.
- Satellite Healthcare Gilroy7800 Arroyo Cir, Gilroy, CA 95020 · Santa Clara CountyPhone(408) 848-5410
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Dennis Namphong Phan is affiliated with 9 sites of care and 2 medical groups
Dr. Phan's primary practice is Satellite Healthcare Gilroy in Gilroy, California. Dr. Phan is also affiliated with Santa Clara Valley Medical Center. The medical group on file is Central Coast Nephrology. Dmand AI also links Dr. Phan to 3 more hospitals, 3 dialysis centers, 1 group practice or clinic and 1 medical group, 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. Dennis Namphong Phan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Phan practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Satellite Healthcare Gilroy | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dennis Namphong Phan is one of 1,401 nephrologists in California
Nephrology is Dr. Phan's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Phan is board certified in nephrology by the American Board of Internal Medicine. Dr. Phan has a license on file in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Clinical focus
Dmand AI lists acute kidney failure, chronic anemia, chronic kidney disease, fluid and electrolyte imbalances, kidney disease and parathyroid gland disorder among the conditions Dr. Phan treats.
Nephrologists near Dr. Phan
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. Dennis Namphong Phan billed Medicare for 59,610 services in 2024
CMS data shows 59,610 Medicare services from Dr. Phan across 30 procedure codes in 2024, for 896 Medicare patients. Medicare paid $727,811 for them.
Dr. Phan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 24,5792024: 37,02151%
- Other services
- 2023: 14,8042024: 19,14829%
- Tests and treatments
- 2023: 1,7222024: 1,6415%
- Office and hospital visits
- 2023: 1,6162024: 1,29020%
- Lab and pathology
- 2023: 4452024: 31928%
- Surgery
- 2023: 2202024: 19113%
Where Dr. Phan's Medicare services took place, 2024
- In an office58,64598%
- In a facility9652%
Dr. Phan compared with the California median for nephrologists, 2024
- Dr. Phan
- California median
- Medicare services
- 59,610vs 1,08455.0 times
- Medicare patients
- 896vs 3072.9 times
- Part D claims
- 1,776vs 95586% above
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Phan'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. Phan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Phan and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dennis Namphong Phan treated 896 Medicare patients in 2024, average age 73
CMS counts 896 Medicare patients who saw Dr. Phan in 2024. The largest group is 75 to 84, with 336 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 42% are also on Medicaid. Their average risk score is 3.68, 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. Phan's median patient age at 66, with 50% women.
Dr. Phan's Medicare patients by age, 2024
Dr. Phan's Medicare patients by sex, 2024
- Women50256%
- Men39444%
Chronic conditions among Dr. Phan's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes63%
- Arthritis42%
- Heart failure41%
- Ischemic heart disease41%
- Osteoporosis29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Phan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dennis Namphong Phan wrote 2,078 Medicare Part D claims in 2024
In 2024, Dr. Phan wrote 2,078 Medicare Part D claims for 324 patients. 82% of them were for generic drugs. CMS names the drug for 1,776 of them, across 42 drugs with 11 or more claims each, at $366,130 in total drug cost. In 2023, CMS named 1,867 claims across 46 drugs.
Dr. Phan's Part D claims by kind of drug, 2024
- Generic1,704 claims82%
- Brand-name374 claims18%
Dr. Phan'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: 1,8672024: 1,7765%
Drugs named by CMS: 42 in 2024, 46 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
How Dr. Dennis Namphong Phan takes part in Medicare
Dr. Phan 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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Dr. Dennis Namphong Phan received $10,522 in industry payments from 2016 to 2025
CMS Open Payments shows 660 general payments to Dr. Phan from 41 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Relypsa, Inc. paid the most, $1,608.
General payments to Dr. Phan by program year, 2016 to 2025
General payments to Dr. Phan by kind, 2016 to 2025
- Food and beverage$9,76093%
- Education$5775%
- Speaker and faculty fees$1852%
Companies that paid Dr. Phan 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. Dennis Namphong Phan has 1 award and honors on record
Dmand AI lists 1 award for Dr. Phan, most recently CMS Stage 1 2012 in 2012.
Awards and honors for Dr. Phan
- 2012
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Dennis Namphong Phan graduated from Lewis Katz School of Medicine
Dr. Phan graduated from Lewis Katz School of Medicine in 2000. Dr. Phan is a member of ASN.
- Medical school
- Board certified in nephrology
- Board certified in ultrasound
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Dennis Namphong Phan accepts plans from 16 insurance carriers
Dr. Phan is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +8 more carriersWith a free account
Plan types Dr. Phan accepts, by number of carriers
- PPO10
- Medicare9
- HMO6
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Dennis Namphong Phan'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) |
| 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. Dennis Namphong Phan
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. Dennis Namphong Phan's NPI number?
Dr. Dennis Namphong Phan's NPI number is 1437238342. It was assigned on November 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Dennis Namphong Phan?
Dr. Dennis Namphong Phan is a nephrologist in Gilroy, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Dennis Namphong Phan practice?
Dr. Phan practices at 7800 Arroyo Cir, Gilroy, CA 95020. Dr. Phan's primary practice is Satellite Healthcare Gilroy in Gilroy, California. Dmand AI also links Dr. Phan to 3 hospitals, 3 dialysis centers, 1 group practice or clinic and 1 medical group.
What is Dr. Dennis Namphong Phan's office phone number?
The practice phone on file for Dr. Phan is (408) 848-5410.
What is Dr. Dennis Namphong Phan's medical license number?
Dr. Phan's California license number on file is A767040.
Which hospitals is Dr. Dennis Namphong Phan affiliated with?
Dr. Phan is affiliated with Santa Clara Valley Medical Center. Dmand AI links Dr. Phan to 3 more hospitals.
What medical group is Dr. Dennis Namphong Phan part of?
Dr. Phan is linked to Central Coast Nephrology. Dmand AI links Dr. Phan to 1 more medical group.
Does Dr. Dennis Namphong Phan accept Medicare?
Yes. CMS data shows Dr. Phan billed Medicare for 59,610 services in 2024, and Dr. Phan accepts Medicare assignment.
How many Medicare patients does Dr. Dennis Namphong Phan see?
CMS counts 896 Medicare patients who saw Dr. Phan in 2024, with an average age of 73.
Is Dr. Dennis Namphong Phan board certified?
Yes. Dr. Phan is board certified in nephrology by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Dennis Namphong Phan bill to Medicare?
In 2024, Dr. Phan's most billed Medicare services were medicare temporary code (Q0138), injected or infused drug (J1306) and injected or infused drug (J3111).
Where did Dr. Dennis Namphong Phan go to medical school?
Dr. Phan graduated from Lewis Katz School of Medicine in 2000.
What drugs does Dr. Dennis Namphong Phan prescribe most?
In 2024 Medicare Part D data, Dr. Phan's most prescribed drugs by claims were Amlodipine Besylate, Lisinopril and Losartan Potassium.
Has Dr. Dennis Namphong Phan received payments from drug or device companies?
CMS Open Payments shows $10,522 in general payments to Dr. Phan from 41 companies from 2016 to 2025. The largest total came from Relypsa, Inc.
How long has Dr. Dennis Namphong Phan been practicing?
Dr. Phan graduated from medical school in 2000, 26 years ago.
What insurance does Dr. Dennis Namphong Phan accept?
Dr. Phan is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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