NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1699160259 DO
Verify on CMS → Long-Chau Van, DO
Pain Medicine (Anesthesiology) Physician in Springfield, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,032 in Pain Medicine (Anesthesiology) 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
69
Medicare Part D claims · 38 beneficiaries · Pain Medicine (Anesthesiology) Physician avg: 2K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$106.23
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Long-Chau Van, DO filed 69 Medicare Part D claims in 2023 as a Pain Medicine (Anesthesiology) Physician in Springfield, Massachusetts, prescribing 80% generic.
- 69
- Part D claims, 2023
- 80%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Long-Chau Van, DO
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1699160259), first enumerated 03/31/2015.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 69 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$106.23 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Long-Chau Van, DO's individual license status. Verify directly with the state medical board.
Source: BORIM annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1699160259 · Pain Medicine (Anesthesiology) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1699160259
- ENUM-MID 2015
- TAX-NARROW 4,032
- RX-TRACE 69
- BOOK-THIN 94 in Massachusetts
- PHOTO-ENUM Andrew Wong · 2015
Long-Chau Van, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
69 ≥ 0th percentile 0% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Long-Chau Van, DO 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 Long-Chau Van, DO?
Quality data not reportedPrimary specialty
Pain Medicine (Anesthesiology) Physician
Medicare Part D claims
69 96% vs specialty avg
Specialty distribution in Massachusetts
How Pain Medicine (Anesthesiology) Physician compares to other specialties among Massachusetts 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 Pain Medicine (Anesthesiology) 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).
Practice Address
Provider Details
| NPI | 1699160259 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 03/31/2015 |
Hospital and facility affiliations
Facilities where Long-Chau Van, DO 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.
Baystate Medical Practices Inc
Springfield, MA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Long-Chau Van, DO. Source: openpaymentsdata.cms.gov.
Total received
$106
Largest payer
Vertos Medical, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Massachusetts BORIM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Long-Chau Van, DO. To verify Long-Chau Van, DO's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Long-Chau Van, DO - brand share 20.0%
Pain Medicine (Anesthesiology) Physician average
20% brand-name claims vs 80% generic, on 69 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.
69
Total Claims
$12K
Total Drug Cost
38
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 79
- Total Day Supply
- 1,787
- Brand vs Generic
- 20% brand / 80% generic
- Brand Drug Cost
- $945
- Generic Drug Cost
- $11K
- Opioid Claims
- 44 (63.8% rate)
Patient Demographics
- Average Patient Age
- 68.7 years
- Avg HCC Risk Score
- 1.54
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 15, 65-74: 12, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 25 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Pain Medicine (Anesthesiology) Physician in MA →
All providers in Massachusetts →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How Long-Chau Van, DO fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.
4,032
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,657
Avg Claims per Provider
Long-Chau Van, DO's 69 claims are below the specialty average of 1,657.
Nationwide Pain Medicine (Anesthesiology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Van, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pain Medicine (Anesthesiology) Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Van.
One of 94 Pain Medicine (Anesthesiology) Physician providers enrolled in Massachusetts, 5 are shown here.
Dr. Mario Addabbo
M.D.
Westwood, MA
Dr. Shihab Ahmed
MBBS
Boston, MA
Dr. Vimal Akhouri
MD
Boston, MA
Dr. Peter Assaad
DO
Brighton, MA
Dr. Ahmed Atia
MD
Stoughton, MA
Compare Pain Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Long-Chau Van, DO's specialty? ▼
Long-Chau Van, DO specializes in Pain Medicine (Anesthesiology) Physician and practices in Springfield, Massachusetts. Credentials: DO.
How much does Long-Chau Van, DO prescribe under Medicare Part D? ▼
In 2023, Long-Chau Van, DO wrote 69 Medicare Part D claims totaling $12K in drug costs for 38 beneficiaries.
Where is Long-Chau Van, DO located? ▼
Long-Chau Van, DO is located at BAYSTATE MEDICAL CTR, Springfield, MA, 01199. Phone: (413) 794-0000.
What is Long-Chau Van, DO's NPI number? ▼
Long-Chau Van, DO's National Provider Identifier (NPI) is 1699160259, issued on 03/31/2015.
Does Long-Chau Van, DO prescribe more brand-name or generic drugs? ▼
Long-Chau Van, DO's prescribing is 20% brand-name and 80% generic drugs by claim count, with $945 in brand drug costs.
Does Long-Chau Van, DO prescribe opioids? ▼
Yes, Long-Chau Van, DO had 44 opioid claims in 2023 with an opioid prescribing rate of 63.8%.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 4,032 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,657 Medicare Part D claims per year.
What drugs does Long-Chau Van, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Long-Chau Van, DO's most frequently prescribed drugs include Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Long-Chau Van, DO accept Medicare? ▼
Long-Chau Van, DO appears in CMS Medicare data with 69 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Long-Chau Van, DO's credentials? ▼
Long-Chau Van, DO's NPI is 1699160259 with credentials DO. 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.