NPI registry status
Active
2026 NPPES data Addiction Medicine (Anesthesiology) Physician NPI 1437357019 MD
Verify on CMS → Zachariah Chambers, MD
Addiction Medicine (Anesthesiology) Physician in Las Vegas, Nevada.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 125 in Addiction 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
735
Medicare Part D claims · 212 beneficiaries · Addiction Medicine (Anesthesiology) Physician avg: 799
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
87.7/100
▲ 4 pts above national avg 83.5 · Above neutral
Industry payments
$33.77
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Zachariah Chambers, MD reported a CMS MIPS final score of 87.7/100 - above the 83.5 national average - and filed 735 Medicare Part D claims in 2024.
- 87.7/100
- MIPS score · +4 vs avg
- 735
- Part D claims, 2024
- 98%
- 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.
Federal trust snapshot
What official records show about Zachariah Chambers, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1437357019), first enumerated 07/05/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 735 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 87.7/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- 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
Industry payment transparency
$33.77 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1437357019 · Addiction Medicine (Anesthesiology) Physician
NPI-10 · ENUM-MID · TAX-TRACE · MIPS-ABOVE · RX-LIGHT · BOOK-THIN · NEAR-MIPS
- NPI-10 1437357019
- ENUM-MID 2007
- TAX-TRACE 125
- MIPS-ABOVE 87.7/100
- RX-LIGHT 735
- BOOK-THIN 4 in Nevada
- NEAR-MIPS Ross Cotton, MD · 2.4
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Woodley Mardy-Da…
Woodley Mardy-Davis, M.D.
84.5 MIPS pts
- Chambers · this …
Chambers · this provider
87.7 MIPS pts
- Ross Cotton, MD …
Ross Cotton, MD
90.1 MIPS pts
- Vinai Vishwanath…
Vinai Vishwanath, M.D.
92.3 MIPS pts
- Gina Subtirelu, …
Gina Subtirelu, M.D.
93.5 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Zachariah Chambers, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
88 ≥ 52nd percentile 52% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
✓
Board certification likely (heuristic, not verified)
Zachariah Chambers, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Zachariah Chambers, MD?
High performer (top quartile)Primary specialty
Addiction Medicine (Anesthesiology) Physician
Medicare Part D claims
735 8% vs specialty avg
MIPS final score
87.7/100 4.2 pts vs avg
Specialty distribution in Nevada
How Addiction Medicine (Anesthesiology) Physician compares to other specialties among Nevada providers
Medicare quality performance, MIPS
Zachariah Chambers, MD's 2023 MIPS final score plotted against the Addiction Medicine (Anesthesiology) Physician national average
- MIPS Final Score
- 87.7/100
- vs 83.5 national avg · 2023 performance year
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 | 1437357019 |
|---|---|
| Specialty | Addiction Medicine (Anesthesiology) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/05/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
87.7464
Final Score
Measured-score avg: 83.5
57.7777
Quality
Reporting: Individual
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 Zachariah Chambers, MD. Source: openpaymentsdata.cms.gov.
Total received
$34
Largest payer
Abbott Laboratories
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.
Brand vs generic prescribing mix · Generic-heavy
Zachariah Chambers, MD - brand share 2.0%
Addiction Medicine (Anesthesiology) Physician average
2% brand-name claims vs 98% generic, on 735 2024 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 2024.
735
Total Claims
$20K
Total Drug Cost
212
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 772.833
- Total Day Supply
- 22,310
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $5K
- Generic Drug Cost
- $15K
- Opioid Claims
- 317 (43.1% rate)
Patient Demographics
- Average Patient Age
- 64.7 years
- Avg HCC Risk Score
- 1.57
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 90, 65-74: 94, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Zachariah Chambers, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
105 claims
- Oxycodone Hcl
Oxycodone Hcl
105 claims
- Gabapentin
Gabapentin
87 claims
- Tizanidine Hcl
Tizanidine Hcl
66 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
61 claims
- Ibuprofen 38
Ibuprofen
38 claims
- Methocarbamol 34
Methocarbamol
34 claims
- Cyclobenzaprine Hcl 32
Cyclobenzaprine Hcl
32 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 105 |
| Oxycodone Hcl | 105 |
| Gabapentin | 87 |
| Tizanidine Hcl | 66 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 61 |
| Ibuprofen | 38 |
| Methocarbamol | 34 |
| Cyclobenzaprine Hcl | 32 |
| Meloxicam | 27 |
| Pregabalin | 27 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Anesthesiology) Physician in NV →
All providers in Nevada →
Compare specialties →
Addiction Medicine (Anesthesiology) Physician Overview
How Zachariah Chambers, MD fits within the Addiction Medicine (Anesthesiology) Physician landscape nationally.
125
Addiction Medicine (Anesthesiology) Physician Providers in US
37
States with Addiction Medicine (Anesthesiology) Physician
799
Avg Claims per Provider
Zachariah Chambers, MD's 735 claims are below the specialty average of 799.
Nationwide Addiction Medicine (Anesthesiology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chambers, both outside Nevada so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (87.7 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Addiction Medicine (Anesthesiology) Physician Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Chambers.
One of 4 Addiction Medicine (Anesthesiology) Physician providers enrolled in Nevada, 3 are shown here.
Dr. Brian Le
DO
Las Vegas, NV
Dr. Paul Reynolds
M.D.
Las Vegas, NV
Dr. Warren Seeds
MD
Las Vegas, NV
Compare Addiction Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Zachariah Chambers, MD's specialty? ▼
Zachariah Chambers, MD specializes in Addiction Medicine (Anesthesiology) Physician and practices in Las Vegas, Nevada. Credentials: MD.
How much does Zachariah Chambers, MD prescribe under Medicare Part D? ▼
In 2024, Zachariah Chambers, MD wrote 735 Medicare Part D claims totaling $20K in drug costs for 212 beneficiaries.
What is Zachariah Chambers, MD's Medicare quality score? ▼
Zachariah Chambers, MD has a CMS MIPS Final Score of 87.7/100 (Quality: 57.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Zachariah Chambers, MD located? ▼
Zachariah Chambers, MD is located at 3281 N DECATUR BLVD STE 150, Las Vegas, NV, 89130. Phone: (702) 463-1088.
What is Zachariah Chambers, MD's NPI number? ▼
Zachariah Chambers, MD's National Provider Identifier (NPI) is 1437357019, issued on 07/05/2007.
Does Zachariah Chambers, MD prescribe more brand-name or generic drugs? ▼
Zachariah Chambers, MD's prescribing is 2% brand-name and 98% generic drugs by claim count, with $5K in brand drug costs.
Does Zachariah Chambers, MD prescribe opioids? ▼
Yes, Zachariah Chambers, MD had 317 opioid claims in 2024 with an opioid prescribing rate of 43.1%.
How many Addiction Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 125 Addiction Medicine (Anesthesiology) Physician providers across 37 states in the US. The average Addiction Medicine (Anesthesiology) Physician provider writes 799 Medicare Part D claims per year.
What drugs does Zachariah Chambers, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Zachariah Chambers, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone Hcl, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Zachariah Chambers, MD accept Medicare? ▼
Zachariah Chambers, MD appears in CMS Medicare data with 735 Part D claims and 212 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Zachariah Chambers, MD's credentials? ▼
Zachariah Chambers, MD's NPI is 1437357019 with credentials MD. 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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 August 2026 (NPPES) / 2024 (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 August 2026.