Via Geronga Tan, CRNA
- Medicare patients, 2024
- 492
- MIPS score, 2024
- 90
- Hospital affiliations
- 1
- Medical groups
- 8
- State license
- 1
- Practice address
- 42442 10th St West, Suite G, Lancaster, CA 93534
- Practice phone
- Call (661) 726-5329
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Envision Surgery Center - Lancaster
Surgery Center - Medicare-Certified · Lancaster, California
Find Via Tan's professional email, personal email and mobile number
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Via Geronga Tan is a nurse anesthetist in Lancaster, California
Via Tan practices at Envision Surgery Center - Lancaster in Lancaster, California.
Via Tan's NPI, 1659962454, was assigned on February 3, 2021. Via Tan holds California license 95001439.
- NPI
- 1659962454NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092193326
- NPI enumeration date
- February 3, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (661) 726-5329
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Via Geronga Tan practices at Envision Surgery Center - Lancaster in Lancaster, California
Via Tan's primary practice is Envision Surgery Center - Lancaster, at 42442 10th St West, Suite G, Lancaster, CA 93534. The practice phone is (661) 726-5329.
- Envision Surgery Center - Lancaster42442 10th St West, Suite G, Lancaster, CA 93534Phone(661) 726-5329
Source: Dmand AI Affiliation Data
Via Geronga Tan is affiliated with 4 sites of care and 8 medical groups
Via Tan's primary practice is Envision Surgery Center - Lancaster in Lancaster, California. Via Tan is also affiliated with Valley Presbyterian Hospital. The medical group on file is Tip Top Anesthesia. Dmand AI also links Via Tan to 7 more medical groups, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Via Geronga Tan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Via Tan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Envision Surgery Center - Lancaster | Available with a free account |
| +3 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Via Geronga Tan is one of 2,410 nurse anesthetists in California
Nurse anesthetist, certified registered is Via Tan's primary specialty in the NPI Registry, under taxonomy code 367500000X. Via Tan is licensed in California.
Specialties and state licenses
- Certified registered nurse anesthetist, CaliforniaPrimary
Nurse anesthetists near Via Tan
Counts of nurse anesthetists 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
Via Geronga Tan treated 492 Medicare patients in 2024, average age 74
CMS counts 492 Medicare patients who saw Via Tan in 2024. The largest group is 65 to 74, with 249 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 20% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Via Tan's median patient age at 73, with 63% women.
Via Tan's Medicare patients by age, 2024
Via Tan's Medicare patients by sex, 2024
- Women27857%
- Men21443%
Chronic conditions among Via Tan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis49%
- Diabetes34%
- Ischemic heart disease25%
- Anxiety23%
- Mood disorders22%
- Chronic kidney disease20%
Share of Medicare patients with each condition. A patient can have several.
Via 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 73
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Via Geronga Tan scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Via Tan for performance year 2024, reported as part of a group. Via Tan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Via Tan's MIPS scores, performance year 2024
- 90of 100Final score
- 77of 100Quality
- 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
Sources for Via Geronga 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 patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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) |
| 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 Via Geronga Tan
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What is Via Geronga Tan's NPI number?
Via Geronga Tan's NPI number is 1659962454. It was assigned on February 3, 2021, and it is active in the NPI Registry.
What does Via Geronga Tan specialize in?
Via Geronga Tan is a nurse anesthetist in Lancaster, California. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).
Where does Via Geronga Tan practice?
Via Tan practices at 42442 10th St West, Suite G, Lancaster, CA 93534. Via Tan's primary practice is Envision Surgery Center - Lancaster in Lancaster, California. Dmand AI also links Via Tan to 7 medical groups, 1 group practice or clinic and 1 ambulatory surgery center.
What is Via Geronga Tan's office phone number?
The practice phone on file for Via Tan is (661) 726-5329.
What is Via Geronga Tan's medical license number?
Via Tan holds California license 95001439.
Which hospitals is Via Geronga Tan affiliated with?
Via Tan is affiliated with Valley Presbyterian Hospital.
What medical group is Via Geronga Tan part of?
Via Tan is linked to Tip Top Anesthesia. Dmand AI links Via Tan to 7 more medical groups.
Does Via Geronga Tan accept Medicare?
Yes. CMS lists Via Tan as accepting Medicare assignment.
What is Via Geronga Tan's MIPS score?
Via Tan's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
How many Medicare patients does Via Geronga Tan see?
CMS counts 492 Medicare patients who saw Via Tan in 2024, with an average age of 74.
How long has Via Geronga Tan been practicing?
Via Tan graduated from medical school in 2021, 5 years ago.
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