NPI registry status
Active
2026 NPPES data Pain Medicine Physician NPI 1033501671 DO
Verify on CMS → Henry Lok, DO
Pain Medicine 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 1,006 in Pain Medicine 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
149
Medicare Part D claims · 44 beneficiaries · Pain Medicine Physician avg: 2K
MIPS score
0/100
▼ 84 pts below national avg 83.5 · Penalty band
What the federal data shows
Henry Lok, DO reported a CMS MIPS final score of 0/100 - below the 83.5 national average - and filed 149 Medicare Part D claims in 2024.
- 0/100
- MIPS score · -83 vs avg
- 149
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥0th
- pct among measured MIPS (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 Henry Lok, DO
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 1033501671), first enumerated 02/18/2015.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 149 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 0/100 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.
- 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 1033501671 · Pain Medicine Physician
NPI-10 · ENUM-MID · TAX-NARROW · MIPS-LOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1033501671
- ENUM-MID 2015
- TAX-NARROW 1,006
- MIPS-LOW 0/100
- RX-LIGHT 149
- BOOK-THIN 18 in Nevada
- PHOTO-FINISH Rahul Anand, M.D. · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Lok · this provi… 0
Lok · this provider
0 MIPS pts
- Jeffrey Charnov,… 0
Jeffrey Charnov, M.D.
0 MIPS pts
- Rahul Anand, M.D… 0
Rahul Anand, M.D.
0 MIPS pts
- John Arbuckle, M… 0
John Arbuckle, MD
0 MIPS pts
- Gary Baker, MD ·… 0
Gary Baker, MD
0 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Henry Lok, DO'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.
0 ≥ 0th percentile 0% 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
Where Henry Lok, DO sits
This provider among pain medicine physician peers
Across the 262 pain medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Henry Lok, DO writes more Part D claims than 12% of them and scores higher on MIPS quality than 0% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one pain medicine physician peer from a representative sample of 60; the gold marker is Henry Lok, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Henry Lok, DO 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 Henry Lok, DO?
Below national averagePrimary specialty
Pain Medicine Physician
Medicare Part D claims
149 93% vs specialty avg
MIPS final score
0/100 83.5 pts vs avg
Specialty distribution in Nevada
How Pain Medicine Physician compares to other specialties among Nevada providers
Medicare quality performance, MIPS
Henry Lok, DO's 2023 MIPS final score plotted against the Pain Medicine Physician national average
- MIPS Final Score
- 0/100
- 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 | 1033501671 |
|---|---|
| Specialty | Pain Medicine Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 02/18/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Measured-score avg: 83.5
0
Quality
Reporting: Individual
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
149
Total Claims
$10K
Total Drug Cost
44
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 175
- Total Day Supply
- 4,440
- Generic Drug Cost
- $2K
- Opioid Claims
- 26 (17.4% rate)
Patient Demographics
- Average Patient Age
- 74.9 years
- Avg HCC Risk Score
- 1.09
- Gender Split
- 73% female / 27% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Henry Lok, DO prescribes most
Top Medicare Part D drugs by claim count, 2024
- Gabapentin
Gabapentin
39 claims
- Cyclobenzaprine Hcl
Cyclobenzaprine Hcl
21 claims
- Tizanidine Hcl
Tizanidine Hcl
19 claims
- Acetaminophen-Code… 14
Acetaminophen-Codeine
14 claims
- Tramadol Hcl 12
Tramadol Hcl
12 claims
| Drug | Claims |
|---|---|
| Gabapentin | 39 |
| Cyclobenzaprine Hcl | 21 |
| Tizanidine Hcl | 19 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 14 |
| Tramadol Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pain Medicine Physician Overview
How Henry Lok, DO fits within the Pain Medicine Physician landscape nationally.
1,006
Pain Medicine Physician Providers in US
49
States with Pain Medicine Physician
2,094
Avg Claims per Provider
Henry Lok, DO's 149 claims are below the specialty average of 2,094.
Nationwide Pain Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Lok, both outside Nevada so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (0 here).
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pain Medicine Physician Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Lok.
One of 18 Pain Medicine Physician providers enrolled in Nevada, 5 are shown here.
Robert Altrich
PA-C
Henderson, NV
Dr. Yuan-Chung Chen
D.O.
Henderson, NV
Marissa Cossio
Reno, NV
Tanner Croshaw
PA
North Las Vegas, NV
Dr. Mona Elkomos-Botros
MD
North Las Vegas, NV
Compare Pain Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Henry Lok, DO's specialty? ▼
Henry Lok, DO specializes in Pain Medicine Physician and practices in Las Vegas, Nevada. Credentials: DO.
How much does Henry Lok, DO prescribe under Medicare Part D? ▼
In 2024, Henry Lok, DO wrote 149 Medicare Part D claims totaling $10K in drug costs for 44 beneficiaries.
What is Henry Lok, DO's Medicare quality score? ▼
Henry Lok, DO has a CMS MIPS Final Score of 0/100 (Quality: 0). 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 Henry Lok, DO located? ▼
Henry Lok, DO is located at 1818 E DESERT INN RD, Las Vegas, NV, 89169. Phone: (702) 732-1063.
What is Henry Lok, DO's NPI number? ▼
Henry Lok, DO's National Provider Identifier (NPI) is 1033501671, issued on 02/18/2015.
Does Henry Lok, DO prescribe opioids? ▼
Yes, Henry Lok, DO had 26 opioid claims in 2024 with an opioid prescribing rate of 17.4%.
How many Pain Medicine Physician providers are there in the US? ▼
There are 1,006 Pain Medicine Physician providers across 49 states in the US. The average Pain Medicine Physician provider writes 2,094 Medicare Part D claims per year.
What drugs does Henry Lok, DO prescribe most often? ▼
Based on 2024 Medicare Part D data, Henry Lok, DO's most frequently prescribed drugs include Gabapentin, Cyclobenzaprine Hcl, Tizanidine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Henry Lok, DO accept Medicare? ▼
Henry Lok, DO appears in CMS Medicare data with 149 Part D claims and 44 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Henry Lok, DO's credentials? ▼
Henry Lok, DO's NPI is 1033501671 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 (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.