2026 NPPES data Hematology & Oncology Physician NPI 1578526810 MD
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ALLEN LIM JR, MD

Hematology & Oncology Physician in MOREHEAD, Kentucky. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
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
79.8487/100
▼ 3 pts below national avg 83.1 · [object Object]
What the federal data reveals: ALLEN LIM JR, MD is a Hematology & Oncology Physician ([object Object]) practicing in MOREHEAD, Kentucky with a Medicare Part D prescribing footprint of 436 claims across 104 beneficiaries — 23% brand-name prescribing . Their CMS MIPS Final Score of 79.8487/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: ALLEN LIM JR, MD reported a CMS MIPS final score of 79.8487 out of 100, below the 83.1 national average, and filed 436 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

ALLEN LIM JR, MD at a glance

Near national average

NPI registry status

Active

Issued 04/08/2006

NPI 1578526810

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

436 49% vs specialty avg

2023 prescription claims

Specialty avg: 847

MIPS final score

79.8487/100 3.2513000000000005% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Kentucky

How Hematology & Oncology Physician compares to other specialties among Kentucky providers

Kentucky providers

Hematology & Oncology Physician share within Kentucky

1. Hematology & Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hematology & Oncology Physician share within Kentucky

Medicare quality performance — MIPS

ALLEN LIM JR, MD's 2023 MIPS final score plotted against the Hematology & Oncology Physician national average

Near national average
MIPS Final Score
79.8487/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hematology & Oncology Physician) — 79.8487/100 vs national avg 83.1

0%100%National avg83%79.8%
MIPS final score (Hematology & Oncology Physician) — 79.8487/100 vs national avg 83.1

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 is a Hematology & Oncology Physician provider practicing in MOREHEAD, Kentucky, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1578526810. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LIM JR 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 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. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.8487/100 for the 2023 performance year (Quality 58.4337, Cost 71.0619), 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

234 MEDICAL CIR
MOREHEAD, KY 40351

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%
Specialty average (est.)

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.

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.

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

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 79.8487/100 (Quality: 58.4337, Cost: 71.0619). 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

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