2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1992739619 MD
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LAKE MORRISON, MD

Critical Care Medicine (Internal Medicine) Physician in DURHAM, North Carolina. 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
808
Medicare Part D claims · 123 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$4.8K
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

LAKE MORRISON, MD filed 808 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in DURHAM, North Carolina, prescribing 66% generic.

808
Part D claims, 2023
66%
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.

LAKE MORRISON, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

808 Top 27% higher than 73% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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

Board certification likely (heuristic — not verified)

LAKE MORRISON, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — 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 LAKE MORRISON, MD?

Quality data not reported

NPI registry status

Active

Issued 07/10/2006

NPI 1992739619

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

808 24% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

Specialty distribution in North Carolina

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among North Carolina providers

North Carolina providers

Critical Care Medicine (Internal Medicine) Physician share within North Carolina

1. Critical Care Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine (Internal Medicine) Physician share within North Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Critical Care Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Critical Care Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Critical Care Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Critical Care Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

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).

LAKE MORRISON, MD appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding MD credentials at 40 DUKE MEDICINE CIR, DURHAM, NC, 27710, with a listed phone of (919) 681-1300. NPI 1992739619 was issued on 07/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MORRISON 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 808 prescription claims written by this provider, covering 123 Medicare beneficiaries and totaling roughly $2.6 million in drug spend, split 34% brand-name and 66% 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.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

40 DUKE MEDICINE CIR
DURHAM, NC 27710

Provider Details

NPI 1992739619
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 07/10/2006

Hospital and facility affiliations

Facilities where LAKE MORRISON, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

DUKE HEALTH INTEGRATED PRACTICE INC
DURHAM, NC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 LAKE MORRISON, MD. Source: openpaymentsdata.cms.gov.

Total received

$4.8K

Largest payer

Boehringer Ingelheim Pharmaceuticals, Inc.

Most common payment type

Food and Beverage

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.

Brand vs generic prescribing mix · Above average

LAKE MORRISON, MD — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 808 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.

808
Total Claims
$2.6M
Total Drug Cost
123
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,164
Total Day Supply
33,388
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$2.4M
Generic Drug Cost
$130K
Antibiotic Claims
105

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
1.68
Gender Split
52% female / 48% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What LAKE MORRISON, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisone
190
Ofev
Nintedanib Esylate
173
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
78
Mycophenolate Mofetil
68
Pirfenidone
46
Albuterol Sulfate Hfa
Albuterol Sulfate
27
Flovent Diskus
Fluticasone Propionate
22
Azathioprine
21
Ipratropium Bromide
20
Azithromycin
16

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Critical Care Medicine (Internal Medicine) Physician Overview

How LAKE MORRISON, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

LAKE MORRISON, MD's 808 claims are below the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as MORRISON.

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LAKE MORRISON, MD's specialty?
LAKE MORRISON, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in DURHAM, North Carolina. Credentials: MD.
How much does LAKE MORRISON, MD prescribe under Medicare Part D?
In 2023, LAKE MORRISON, MD wrote 808 Medicare Part D claims totaling $2.6M in drug costs for 123 beneficiaries.
Where is LAKE MORRISON, MD located?
LAKE MORRISON, MD is located at 40 DUKE MEDICINE CIR, DURHAM, NC, 27710. Phone: (919) 681-1300.
What is LAKE MORRISON, MD's NPI number?
LAKE MORRISON, MD's National Provider Identifier (NPI) is 1992739619, issued on 07/10/2006.
Does LAKE MORRISON, MD prescribe more brand-name or generic drugs?
LAKE MORRISON, MD's prescribing is 34% brand-name and 66% generic drugs by claim count, with $2.4M in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does LAKE MORRISON, MD prescribe most often?
Based on 2023 Medicare Part D data, LAKE MORRISON, MD's most frequently prescribed drugs include Prednisone, Ofev, Sulfamethoxazole-Trimethoprim. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LAKE MORRISON, MD accept Medicare?
LAKE MORRISON, MD appears in CMS Medicare data with 808 Part D claims and 123 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LAKE MORRISON, MD's credentials?
LAKE MORRISON, MD's NPI is 1992739619 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.
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