2026 NPPES data Ambulatory Care Pharmacist NPI 1871237909 PHARMD
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MAUREEN JOHNSON, PHARMD

Ambulatory Care Pharmacist in ELK GROVE VILLAGE, Illinois. 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
24
Medicare Part D claims · 13 beneficiaries · Ambulatory Care Pharmacist avg: 492

What the federal data shows

MAUREEN JOHNSON, PHARMD filed 24 Medicare Part D claims in 2023 as a Ambulatory Care Pharmacist in ELK GROVE VILLAGE, Illinois.

24
Part D claims, 2023

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.

MAUREEN JOHNSON, PHARMD's Medicare Part D volume vs every U.S. prescriber

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

24 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 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

What does the federal data show about MAUREEN JOHNSON, PHARMD?

Quality data not reported

NPI registry status

Active

Issued 04/25/2022

NPI 1871237909

Primary specialty

Ambulatory Care Pharmacist

Niche

3,473 US NPIs in this specialty

Medicare Part D claims

24 95% vs specialty avg

2023 prescription claims

Specialty avg: 492

Specialty distribution in Illinois

How Ambulatory Care Pharmacist compares to other specialties among Illinois providers

Illinois providers

Ambulatory Care Pharmacist share within Illinois

1. Ambulatory Care Pharmacist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ambulatory Care Pharmacist share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Ambulatory Care Pharmacist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ambulatory Care Pharmacist ABMS/AOA estimate

Est. board-certified rate (Ambulatory Care Pharmacist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ambulatory Care Pharmacist) — 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).

MAUREEN JOHNSON, PHARMD appears in the CMS NPPES registry as a Ambulatory Care Pharmacist provider holding PHARMD credentials at 955 BEISNER ROAD, ELK GROVE VILLAGE, IL, 60007, with a listed phone of (847) 981-5346. NPI 1871237909 was issued on 04/25/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what JOHNSON 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 24 prescription claims written by this provider, covering 13 Medicare beneficiaries and totaling roughly $6K in drug spend. 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.

Ambulatory Care Pharmacist is a narrow specialty nationwide, with 3,473 enrolled providers across 52 states and an average of 492 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

955 BEISNER ROAD
ELK GROVE VILLAGE, IL 60007

Provider Details

NPI 1871237909
Specialty Ambulatory Care Pharmacist
Credentials PHARMD
Gender Female
NPI Issued 04/25/2022

License & disciplinary context — Illinois IDFPR 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to MAUREEN JOHNSON, PHARMD. To verify MAUREEN JOHNSON, PHARMD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

24
Total Claims
$6K
Total Drug Cost
13
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
54
Total Day Supply
1,605
Generic Drug Cost
$330

Patient Demographics

Average Patient Age
80.8 years
Avg HCC Risk Score
2.08
Age Distribution
<65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A

Ambulatory Care Pharmacist Overview

How MAUREEN JOHNSON, PHARMD fits within the Ambulatory Care Pharmacist landscape nationally.

3,473
Ambulatory Care Pharmacist Providers in US
52
States with Ambulatory Care Pharmacist
492
Avg Claims per Provider

MAUREEN JOHNSON, PHARMD's 24 claims are below the specialty average of 492.

Nearby Ambulatory Care Pharmacist Providers in Illinois

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

Compare Ambulatory Care Pharmacist nationally: see state-by-state distribution →

Frequently Asked Questions

What is MAUREEN JOHNSON, PHARMD's specialty?
MAUREEN JOHNSON, PHARMD specializes in Ambulatory Care Pharmacist and practices in ELK GROVE VILLAGE, Illinois. Credentials: PHARMD.
How much does MAUREEN JOHNSON, PHARMD prescribe under Medicare Part D?
In 2023, MAUREEN JOHNSON, PHARMD wrote 24 Medicare Part D claims totaling $6K in drug costs for 13 beneficiaries.
Where is MAUREEN JOHNSON, PHARMD located?
MAUREEN JOHNSON, PHARMD is located at 955 BEISNER ROAD, ELK GROVE VILLAGE, IL, 60007. Phone: (847) 981-5346.
What is MAUREEN JOHNSON, PHARMD's NPI number?
MAUREEN JOHNSON, PHARMD's National Provider Identifier (NPI) is 1871237909, issued on 04/25/2022.
How many Ambulatory Care Pharmacist providers are there in the US?
There are 3,473 Ambulatory Care Pharmacist providers across 52 states in the US. The average Ambulatory Care Pharmacist provider writes 492 Medicare Part D claims per year.
Does MAUREEN JOHNSON, PHARMD accept Medicare?
MAUREEN JOHNSON, PHARMD appears in CMS Medicare data with 24 Part D claims and 13 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MAUREEN JOHNSON, PHARMD's credentials?
MAUREEN JOHNSON, PHARMD's NPI is 1871237909 with credentials PHARMD. 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