NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1841794120 DO
Verify on CMS → Henry Tan, DO
Emergency Medicine Physician in Tulsa, Oklahoma.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency 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
694
Medicare Part D claims · 364 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
75/100
CMS neutral threshold · no category scores published
What the federal data shows
Henry Tan, DO carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 694 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 694
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥69th
- 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.
Henry Tan, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
694 ≥ 69th percentile 69% 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)
Henry Tan, 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 Tan, DO?
CMS neutral score, not measuredPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
694 97% vs specialty avg
MIPS final score
75/100
Specialty distribution in Oklahoma
How Emergency Medicine Physician compares to other specialties among Oklahoma providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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).
Henry Tan, DO appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding DO credentials at 6161 S YALE AVE, Tulsa, OK, 74136, with a listed phone of (918) 494-2200. NPI 1841794120 was issued on 03/21/2018.
Medicare Part D records for calendar year 2023 show 694 prescription claims written by this provider, covering 364 Medicare beneficiaries and totaling roughly $13K in drug spend, with an opioid prescribing rate of 19.7%. On the CMS Merit-based Incentive Payment System, this provider carries a Final Score of 75/100 for the 2023 performance year, but CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score: this is the neutral performance threshold CMS assigns where nothing was scored, so it is not comparable with clinicians whose score was measured.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1841794120 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 03/21/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
694
Total Claims
$13K
Total Drug Cost
364
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 716
- Total Day Supply
- 6,716
- Generic Drug Cost
- $6K
- Opioid Claims
- 137 (19.7% rate)
- Antibiotic Claims
- 141
Patient Demographics
- Average Patient Age
- 69.4 years
- Avg HCC Risk Score
- 1.80
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 86, 65-74: 144, 75-84: 96, 85+: 38
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Henry Tan, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ondansetron Odt
Ondansetron Odt
181 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
101 claims
- Cephalexin 51
Cephalexin
51 claims
- Prednisone 27
Prednisone
27 claims
- Amoxicillin-Clavul… 25
Amoxicillin-Clavulanate Potass
25 claims
- Meclizine Hcl 21
Meclizine Hcl
21 claims
- Oxycodone-Acetamin… 21
Oxycodone-Acetaminophen
21 claims
- Doxycycline Hyclate 20
Doxycycline Hyclate
20 claims
| Drug | Claims |
|---|---|
| Ondansetron Odt Ondansetron | 181 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 101 |
| Cephalexin | 51 |
| Prednisone | 27 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 25 |
| Meclizine Hcl | 21 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 21 |
| Doxycycline Hyclate | 20 |
| Ketorolac Tromethamine | 18 |
| Pantoprazole Sodium | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Henry Tan, DO fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Henry Tan, DO's 694 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as Tan.
Dr. David Abercrombie
MD
Oklahoma City, OK
Dr. Bobby Abernathy
D.O.
Tulsa, OK
Dr. Tyler Adams
D.O.
Lawton, OK
Dr. Tolulope Adepoju
MD
Norman, OK
Tinuola Agbabiaka
Oklahoma City, OK
Compare Emergency Medicine 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 Oklahoma medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine 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 Henry Tan, DO's specialty? ▼
Henry Tan, DO specializes in Emergency Medicine Physician and practices in Tulsa, Oklahoma. Credentials: DO.
How much does Henry Tan, DO prescribe under Medicare Part D? ▼
In 2023, Henry Tan, DO wrote 694 Medicare Part D claims totaling $13K in drug costs for 364 beneficiaries.
What is Henry Tan, DO's Medicare quality score? ▼
Henry Tan, DO has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. 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 Tan, DO located? ▼
Henry Tan, DO is located at 6161 S YALE AVE, Tulsa, OK, 74136. Phone: (918) 494-2200.
What is Henry Tan, DO's NPI number? ▼
Henry Tan, DO's National Provider Identifier (NPI) is 1841794120, issued on 03/21/2018.
Does Henry Tan, DO prescribe opioids? ▼
Yes, Henry Tan, DO had 137 opioid claims in 2023 with an opioid prescribing rate of 19.7%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Henry Tan, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Henry Tan, DO's most frequently prescribed drugs include Ondansetron Odt, Hydrocodone-Acetaminophen, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Henry Tan, DO accept Medicare? ▼
Henry Tan, DO appears in CMS Medicare data with 694 Part D claims and 364 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Henry Tan, DO's credentials? ▼
Henry Tan, DO's NPI is 1841794120 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.
- 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 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.