2026 NPPES data Medical Physician Assistant NPI 1861490773 P.A. - C.
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SANDRA DEMPSEY, P.A. - C.

Medical Physician Assistant in SAINT JAMES, Missouri. 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
665
Medicare Part D claims · 304 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SANDRA DEMPSEY, P.A. - C. is a Medical Physician Assistant ([object Object]) practicing in SAINT JAMES, Missouri with a Medicare Part D prescribing footprint of 665 claims across 304 beneficiaries — 3% brand-name prescribing .

What stands out: SANDRA DEMPSEY, P.A. - C. filed 665 Medicare Part D claims in 2023 across SAINT JAMES, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SANDRA DEMPSEY, P.A. - C. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/13/2005

NPI 1861490773

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

665 38% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Missouri

How Medical Physician Assistant compares to other specialties among Missouri providers

Missouri providers

Medical Physician Assistant share within Missouri

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Missouri

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — 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).

SANDRA DEMPSEY, P.A. - C. is a Medical Physician Assistant provider practicing in SAINT JAMES, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: P.A. - C.. NPI: 1861490773. 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.

SANDRA DEMPSEY, P.A. - C. appears in the CMS NPPES registry as a Medical Physician Assistant provider holding P.A. - C. credentials at 107 W ELDON ST, SAINT JAMES, MO, 65559, with a listed phone of (573) 265-1818. NPI 1861490773 was issued on 07/13/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DEMPSEY 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 665 prescription claims written by this provider, covering 304 Medicare beneficiaries and totaling roughly $17K in drug spend, split 3% brand-name and 97% 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

107 W ELDON ST
SAINT JAMES, MO 65559

Provider Details

NPI 1861490773
Specialty Medical Physician Assistant
Credentials P.A. - C.
Gender Female
NPI Issued 07/13/2005

Hospital and facility affiliations

Facilities where SANDRA DEMPSEY, P.A. - C. 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.

MERCY CLINIC SPRINGFIELD COMMUNITIES
ROLLA, MO

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

Brand vs generic prescribing mix · Generic-heavy

SANDRA DEMPSEY, P.A. - C. — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 665 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.

665
Total Claims
$17K
Total Drug Cost
304
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
713
Total Day Supply
8,474
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$7K
Generic Drug Cost
$9K
Antibiotic Claims
287

Patient Demographics

Average Patient Age
68.5 years
Avg HCC Risk Score
1.33
Gender Split
66% female / 34% male
Age Distribution
<65: 80, 65-74: 131, 75-84: 73, 85+: 20

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Doxycycline Hyclate
85
Prednisone
69
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
55
Azithromycin
40
Tizanidine Hcl
38
Diclofenac Sodium
26
Cephalexin
22
Albuterol Sulfate Hfa
Albuterol Sulfate
21
Methylprednisolone
21
Triamcinolone Acetonide
21

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

Medical Physician Assistant Overview

How SANDRA DEMPSEY, P.A. - C. fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

SANDRA DEMPSEY, P.A. - C.'s 665 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Missouri

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

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is SANDRA DEMPSEY, P.A. - C.'s specialty?
SANDRA DEMPSEY, P.A. - C. specializes in Medical Physician Assistant and practices in SAINT JAMES, Missouri. Credentials: P.A. - C..
How much does SANDRA DEMPSEY, P.A. - C. prescribe under Medicare Part D?
In 2023, SANDRA DEMPSEY, P.A. - C. wrote 665 Medicare Part D claims totaling $17K in drug costs for 304 beneficiaries.
Where is SANDRA DEMPSEY, P.A. - C. located?
SANDRA DEMPSEY, P.A. - C. is located at 107 W ELDON ST, SAINT JAMES, MO, 65559. Phone: (573) 265-1818.
What is SANDRA DEMPSEY, P.A. - C.'s NPI number?
SANDRA DEMPSEY, P.A. - C.'s National Provider Identifier (NPI) is 1861490773, issued on 07/13/2005.
Does SANDRA DEMPSEY, P.A. - C. prescribe more brand-name or generic drugs?
SANDRA DEMPSEY, P.A. - C.'s prescribing is 3% brand-name and 97% generic drugs by claim count, with $7K in brand drug costs.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does SANDRA DEMPSEY, P.A. - C. prescribe most often?
Based on 2023 Medicare Part D data, SANDRA DEMPSEY, P.A. - C.'s most frequently prescribed drugs include Doxycycline Hyclate, Prednisone, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SANDRA DEMPSEY, P.A. - C. accept Medicare?
SANDRA DEMPSEY, P.A. - C. appears in CMS Medicare data with 665 Part D claims and 304 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SANDRA DEMPSEY, P.A. - C.'s credentials?
SANDRA DEMPSEY, P.A. - C.'s NPI is 1861490773 with credentials P.A. - C.. 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