YUEN CHAN
Internal Medicine Physician in BIRMINGHAM, Alabama. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
YUEN CHAN filed 2,875 Medicare Part D claims in 2023 as a Internal Medicine Physician in BIRMINGHAM, Alabama.
- 3K
- Part D claims, 2023
- $1.8K
- industry payments (Sunshine Act)
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.
YUEN CHAN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
2,875 Top 12% higher than 88% 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
YUEN CHAN practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about YUEN CHAN?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Alabama
How Internal Medicine Physician compares to other specialties among Alabama providers
Internal Medicine Physician share within Alabama
Internal Medicine Physician is one of the more visible NUCC categories in Alabama
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Internal Medicine Physician ABMS/AOA estimate
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Internal Medicine Physician US NPIs
Specialty board-certified rate — Internal Medicine Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
YUEN CHAN appears in the CMS NPPES registry as a Internal Medicine Physician provider at 1801 GADSDEN HWY, BIRMINGHAM, AL, 35235, with a listed phone of (205) 236-1712. NPI 1336635390 was issued on 07/02/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 2,875 prescription claims written by this provider, covering 749 Medicare beneficiaries and totaling roughly $91K in drug spend, with an opioid prescribing rate of 58.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 | 1336635390 |
|---|---|
| Specialty | Internal Medicine Physician |
| Gender | Female |
| NPI Issued | 07/02/2018 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm YUEN CHAN's current license status, disciplinary history, and board certifications with the Alabama Board of Medical Examiners in Alabama before relying on this page for a clinical or care decision.
How we sourced this profile
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 YUEN CHAN. Source: openpaymentsdata.cms.gov.
Total received
$1.8K
Largest payer
Medtronic, Inc.
Most common payment type
Travel and Lodging
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 2,987
- Total Day Supply
- 85,850
- Generic Drug Cost
- $79K
- Opioid Claims
- 1,680 (58.4% rate)
Patient Demographics
- Average Patient Age
- 64.0 years
- Avg HCC Risk Score
- 1.72
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 350, 65-74: 303, 75-84: 83, 85+: 13
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What YUEN CHAN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
896 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
576 claims
- Gabapentin
Gabapentin
535 claims
- Naloxone Hcl 138
Naloxone Hcl
138 claims
- Oxycodone Hcl 120
Oxycodone Hcl
120 claims
- Cyclobenzaprine Hcl 119
Cyclobenzaprine Hcl
119 claims
- Tizanidine Hcl 100
Tizanidine Hcl
100 claims
- Pregabalin 86
Pregabalin
86 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 896 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 576 |
| Gabapentin | 535 |
| Naloxone Hcl | 138 |
| Oxycodone Hcl | 120 |
| Cyclobenzaprine Hcl | 119 |
| Tizanidine Hcl | 100 |
| Pregabalin | 86 |
| Tramadol Hcl | 39 |
| Methocarbamol | 35 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How YUEN CHAN fits within the Internal Medicine Physician landscape nationally.
YUEN CHAN's 2,875 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as CHAN.
Compare Internal Medicine Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
What is YUEN CHAN's specialty? ▼
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Does YUEN CHAN prescribe opioids? ▼
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Data Sources
- 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