NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1578526810 MD
Verify on CMS → Allen Lim Jr, MD
Hematology & Oncology Physician in Morehead, Kentucky.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,215 in Hematology & Oncology 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
436
Medicare Part D claims · 104 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.8/100
▼ 3 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Allen Lim Jr, MD reported a CMS MIPS final score of 79.8/100 - below the 83.1 national average - and filed 436 Medicare Part D claims in 2023.
- 79.8/100
- MIPS score · -3 vs avg
- 436
- Part D claims, 2023
- 77%
- 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.
Allen Lim Jr, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
80 30th percentile higher than 30% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Allen Lim Jr, MD sits
This provider among hematology & oncology physician peers
Across the 4,233 hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Allen Lim Jr, MD writes more Part D claims than 33% of them and scores higher on MIPS quality than 31% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one hematology & oncology physician peer from a representative sample of 60; the gold marker is Allen Lim Jr, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Allen Lim Jr, 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 Allen Lim Jr, MD?
Near national averagePrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
436 49% vs specialty avg
MIPS final score
79.8/100 3.3 pts vs avg
Specialty distribution in Kentucky
How Hematology & Oncology Physician compares to other specialties among Kentucky providers
Medicare quality performance, MIPS
Allen Lim Jr, MD's 2023 MIPS final score plotted against the Hematology & Oncology Physician national average
- MIPS Final Score
- 79.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology & Oncology Physician) - 79.8/100 vs national avg 83.1
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).
Allen Lim Jr, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 234 MEDICAL CIR, Morehead, KY, 40351, with a listed phone of (606) 784-6641. NPI 1578526810 was issued on 04/08/2006.
Medicare Part D records for calendar year 2023 show 436 prescription claims written by this provider, covering 104 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 23% brand-name and 77% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.8/100 for the 2023 performance year (Quality 58.4, Cost 71.1), compared with the national average of 83.1.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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 | 1578526810 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/08/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.8487
Final Score
Avg: 83.1
58.4337
Quality
71.0619
Cost
84
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Typical
Allen Lim Jr, MD - brand share 23.0%
Hematology & Oncology Physician average
23% brand-name claims vs 77% generic, on 436 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.
436
Total Claims
$1.2M
Total Drug Cost
104
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 658
- Total Day Supply
- 18,631
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $998K
- Generic Drug Cost
- $157K
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 2.55
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 15, 65-74: 49, 75-84: 29, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Allen Lim Jr, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Anastrozole
Anastrozole
80 claims
- Imatinib Mesylate 27
Imatinib Mesylate
27 claims
- Diphenoxylate-Atro… 23
Diphenoxylate-Atropine
23 claims
- Hydroxyurea 23
Hydroxyurea
23 claims
- Dexamethasone 20
Dexamethasone
20 claims
- Exemestane 17
Exemestane
17 claims
- Inlyta 16
Inlyta
16 claims
- Allopurinol 14
Allopurinol
14 claims
| Drug | Claims |
|---|---|
| Anastrozole | 80 |
| Imatinib Mesylate | 27 |
| Diphenoxylate-Atropine Diphenoxylate Hcl/Atropine | 23 |
| Hydroxyurea | 23 |
| Dexamethasone | 20 |
| Exemestane | 17 |
| Inlyta Axitinib | 16 |
| Allopurinol | 14 |
| Ondansetron Hcl | 14 |
| Tamoxifen Citrate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Allen Lim Jr, MD fits within the Hematology & Oncology Physician landscape nationally.
11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Allen Lim Jr, MD's 436 claims are below the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Kentucky
Other clinicians with the same primary specialty enrolled in Kentucky, drawn from the same CMS NPPES roster as Lim Jr.
Dr. Mohamed Alsharedi
MD
Lexington, KY
Dr. Bara Alzghoul
MD
Morehead, KY
Dr. Stephen Anderson
M.D.
Maysville, KY
Dr. Florin Andreca
M.D.
Glasgow, KY
Dr. Lowell Anthony
M.D.
Lexington, KY
Compare Hematology & Oncology 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 Kentucky medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology & Oncology 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 Allen Lim Jr, MD's specialty? ▼
Allen Lim Jr, MD specializes in Hematology & Oncology Physician and practices in Morehead, Kentucky. Credentials: MD.
How much does Allen Lim Jr, MD prescribe under Medicare Part D? ▼
In 2023, Allen Lim Jr, MD wrote 436 Medicare Part D claims totaling $1.2M in drug costs for 104 beneficiaries.
What is Allen Lim Jr, MD's Medicare quality score? ▼
Allen Lim Jr, MD has a CMS MIPS Final Score of 79.8/100 (Quality: 58.4, Cost: 71.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Allen Lim Jr, MD located? ▼
Allen Lim Jr, MD is located at 234 MEDICAL CIR, Morehead, KY, 40351. Phone: (606) 784-6641.
What is Allen Lim Jr, MD's NPI number? ▼
Allen Lim Jr, MD's National Provider Identifier (NPI) is 1578526810, issued on 04/08/2006.
Does Allen Lim Jr, MD prescribe more brand-name or generic drugs? ▼
Allen Lim Jr, MD's prescribing is 23% brand-name and 77% generic drugs by claim count, with $998K in brand drug costs.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Allen Lim Jr, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Allen Lim Jr, MD's most frequently prescribed drugs include Anastrozole, Imatinib Mesylate, Diphenoxylate-Atropine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Allen Lim Jr, MD accept Medicare? ▼
Allen Lim Jr, MD appears in CMS Medicare data with 436 Part D claims and 104 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Allen Lim Jr, MD's credentials? ▼
Allen Lim Jr, MD's NPI is 1578526810 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 (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
Compiled from official public sources by the PlainDoctor editorial team.