2026 NPPES data Hospitalist Physician NPI 1518104439 M.D.
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MARK BOERSMA, M.D.

Hospitalist Physician in WEST MONROE, Louisiana. 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
789
Medicare Part D claims · 230 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MARK BOERSMA, M.D. is a Hospitalist Physician ([object Object]) practicing in WEST MONROE, Louisiana with a Medicare Part D prescribing footprint of 789 claims across 230 beneficiaries — 17% brand-name prescribing .

What stands out: MARK BOERSMA, M.D. filed 789 Medicare Part D claims in 2023 across WEST MONROE, Louisiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

MARK BOERSMA, M.D. 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).

MARK BOERSMA, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 01/14/2009

NPI 1518104439

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

789 11% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Louisiana

How Hospitalist Physician compares to other specialties among Louisiana providers

Louisiana providers

Hospitalist Physician share within Louisiana

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within Louisiana

Specialty board-certification context

Estimated specialty board-certified rate — Hospitalist Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hospitalist Physician ABMS/AOA estimate

Est. board-certified rate (Hospitalist Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hospitalist 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).

MARK BOERSMA, M.D. is a Hospitalist Physician provider practicing in WEST MONROE, Louisiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1518104439. 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.

MARK BOERSMA, M.D. appears in the CMS NPPES registry as a Hospitalist Physician provider holding M.D. credentials at 503 MCMILLAN RD, WEST MONROE, LA, 71291, with a listed phone of (318) 329-4744. NPI 1518104439 was issued on 01/14/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BOERSMA 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 789 prescription claims written by this provider, covering 230 Medicare beneficiaries and totaling roughly $76K in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 3.2%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

503 MCMILLAN RD
WEST MONROE, LA 71291

Provider Details

NPI 1518104439
Specialty Hospitalist Physician
Credentials M.D.
Gender Male
NPI Issued 01/14/2009

Brand vs generic prescribing mix · Typical

MARK BOERSMA, M.D. — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 789 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.

789
Total Claims
$76K
Total Drug Cost
230
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
895
Total Day Supply
22,106
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$68K
Generic Drug Cost
$9K
Opioid Claims
25 (3.2% rate)
Antibiotic Claims
107

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
2.46
Gender Split
55% female / 45% male
Age Distribution
<65: 55, 65-74: 84, 75-84: 62, 85+: 29

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Eliquis
Apixaban
49
Clopidogrel
Clopidogrel Bisulfate
42
Atorvastatin Calcium
37
Metoprolol Succinate
36
Losartan Potassium
27
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
26
Gabapentin
24
Prednisone
22
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
19
Entresto
Sacubitril/Valsartan
19

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

Hospitalist Physician Overview

How MARK BOERSMA, M.D. fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

MARK BOERSMA, M.D.'s 789 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Louisiana

Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as BOERSMA.

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARK BOERSMA, M.D.'s specialty?
MARK BOERSMA, M.D. specializes in Hospitalist Physician and practices in WEST MONROE, Louisiana. Credentials: M.D..
How much does MARK BOERSMA, M.D. prescribe under Medicare Part D?
In 2023, MARK BOERSMA, M.D. wrote 789 Medicare Part D claims totaling $76K in drug costs for 230 beneficiaries.
Where is MARK BOERSMA, M.D. located?
MARK BOERSMA, M.D. is located at 503 MCMILLAN RD, WEST MONROE, LA, 71291. Phone: (318) 329-4744.
What is MARK BOERSMA, M.D.'s NPI number?
MARK BOERSMA, M.D.'s National Provider Identifier (NPI) is 1518104439, issued on 01/14/2009.
Does MARK BOERSMA, M.D. prescribe more brand-name or generic drugs?
MARK BOERSMA, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $68K in brand drug costs.
Does MARK BOERSMA, M.D. prescribe opioids?
Yes, MARK BOERSMA, M.D. had 25 opioid claims in 2023 with an opioid prescribing rate of 3.2%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does MARK BOERSMA, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARK BOERSMA, M.D.'s most frequently prescribed drugs include Eliquis, Clopidogrel, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARK BOERSMA, M.D. accept Medicare?
MARK BOERSMA, M.D. appears in CMS Medicare data with 789 Part D claims and 230 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK BOERSMA, M.D.'s credentials?
MARK BOERSMA, M.D.'s NPI is 1518104439 with credentials M.D.. 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