NPI registry status
Active
2026 NPPES data Vascular Surgery Physician NPI 1962173773 PA-C
Verify on CMS → Sai Vang, PA-C
Vascular Surgery Physician in Eau Claire, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,227 in Vascular Surgery Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
357
Medicare Part D claims · 97 beneficiaries · Vascular Surgery Physician avg: 205
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Sai Vang, PA-C filed 357 Medicare Part D claims in 2023 as a Vascular Surgery Physician in Eau Claire, Wisconsin, prescribing 75% generic.
- 357
- Part D claims, 2023
- 75%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Sai Vang, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
357 Top 43% higher than 57% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Sai Vang, PA-C practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Sai Vang, PA-C?
Quality data not reportedPrimary specialty
Vascular Surgery Physician
Medicare Part D claims
357 74% vs specialty avg
Specialty distribution in Wisconsin
How Vascular Surgery Physician compares to other specialties among Wisconsin providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Vascular Surgery Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Sai Vang, PA-C appears in the CMS NPPES registry as a Vascular Surgery Physician provider holding PA-C credentials at 1400 BELLINGER ST, Eau Claire, WI, 54703, with a listed phone of (715) 838-6320. NPI 1962173773 was issued on 09/22/2021.
Medicare Part D records for calendar year 2023 show 357 prescription claims written by this provider, covering 97 Medicare beneficiaries and totaling roughly $72K in drug spend, split 25% brand-name and 75% generic by claim count, with an opioid prescribing rate of 9.0%.
Vascular Surgery Physician is a narrow specialty nationwide, with 4,227 enrolled providers across 53 states and an average of 205 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1962173773 |
|---|---|
| Specialty | Vascular Surgery Physician |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 09/22/2021 |
Hospital and facility affiliations
Facilities where Sai Vang, PA-C bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Mayo Clinic Health System-Northwest Wisconsin Region Inc
Eau Claire, WI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Above average
Sai Vang, PA-C - brand share 25.0%
Vascular Surgery Physician average
25% brand-name claims vs 75% generic, on 357 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
357
Total Claims
$72K
Total Drug Cost
97
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 542
- Total Day Supply
- 13,521
- Brand vs Generic
- 25% brand / 75% generic
- Brand Drug Cost
- $68K
- Generic Drug Cost
- $4K
- Opioid Claims
- 32 (9.0% rate)
- Antibiotic Claims
- 56
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 2.00
- Gender Split
- 42% female / 58% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sai Vang, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clopidogrel
Clopidogrel
75 claims
- Xarelto
Xarelto
61 claims
- Atorvastatin Calcium
Atorvastatin Calcium
31 claims
- Oxycodone Hcl 27
Oxycodone Hcl
27 claims
- Doxycycline Monohy… 19
Doxycycline Monohydrate
19 claims
- Eliquis 16
Eliquis
16 claims
- Cefadroxil 15
Cefadroxil
15 claims
- Pantoprazole Sodium 14
Pantoprazole Sodium
14 claims
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 75 |
| Xarelto Rivaroxaban | 61 |
| Atorvastatin Calcium | 31 |
| Oxycodone Hcl | 27 |
| Doxycycline Monohydrate | 19 |
| Eliquis Apixaban | 16 |
| Cefadroxil | 15 |
| Pantoprazole Sodium | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Vascular Surgery Physician Overview
How Sai Vang, PA-C fits within the Vascular Surgery Physician landscape nationally.
4,227
Vascular Surgery Physician Providers in US
53
States with Vascular Surgery Physician
205
Avg Claims per Provider
Sai Vang, PA-C's 357 claims are above the specialty average of 205.
Nearby Vascular Surgery Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Vang.
Dr. Charles Acher
MD
Madison, WI
Dr. Khosro Adib
MD
Madison, WI
Dr. Ayman Ahmed
MD
Marshfield, WI
Dr. Natasha Ahuja
MD
Green Bay, WI
Dr. Javariah Asghar
M.D.
Marshfield, WI
Compare Vascular Surgery Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Vascular Surgery Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Sai Vang, PA-C's specialty? ▼
Sai Vang, PA-C specializes in Vascular Surgery Physician and practices in Eau Claire, Wisconsin. Credentials: PA-C.
How much does Sai Vang, PA-C prescribe under Medicare Part D? ▼
In 2023, Sai Vang, PA-C wrote 357 Medicare Part D claims totaling $72K in drug costs for 97 beneficiaries.
Where is Sai Vang, PA-C located? ▼
Sai Vang, PA-C is located at 1400 BELLINGER ST, Eau Claire, WI, 54703. Phone: (715) 838-6320.
What is Sai Vang, PA-C's NPI number? ▼
Sai Vang, PA-C's National Provider Identifier (NPI) is 1962173773, issued on 09/22/2021.
Does Sai Vang, PA-C prescribe more brand-name or generic drugs? ▼
Sai Vang, PA-C's prescribing is 25% brand-name and 75% generic drugs by claim count, with $68K in brand drug costs.
Does Sai Vang, PA-C prescribe opioids? ▼
Yes, Sai Vang, PA-C had 32 opioid claims in 2023 with an opioid prescribing rate of 9.0%.
How many Vascular Surgery Physician providers are there in the US? ▼
There are 4,227 Vascular Surgery Physician providers across 53 states in the US. The average Vascular Surgery Physician provider writes 205 Medicare Part D claims per year.
What drugs does Sai Vang, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Sai Vang, PA-C's most frequently prescribed drugs include Clopidogrel, Xarelto, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sai Vang, PA-C accept Medicare? ▼
Sai Vang, PA-C appears in CMS Medicare data with 357 Part D claims and 97 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sai Vang, PA-C's credentials? ▼
Sai Vang, PA-C's NPI is 1962173773 with credentials PA-C. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.