2026 NPPES data Adult Health Nurse Practitioner NPI 1598731424 MD
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MARIANNE ALEXANDER, MD

Adult Health Nurse Practitioner in VOORHEES, New Jersey. 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
1K
Medicare Part D claims · 191 beneficiaries · Adult Health Nurse Practitioner avg: 1K
MIPS score
99.3055/100
▲ 16 pts above national avg 83.1 · [object Object]
What the federal data reveals: MARIANNE ALEXANDER, MD is a Adult Health Nurse Practitioner ([object Object]) practicing in VOORHEES, New Jersey with a Medicare Part D prescribing footprint of 1K claims across 191 beneficiaries . Their CMS MIPS Final Score of 99.3055/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: MARIANNE ALEXANDER, MD reported a CMS MIPS final score of 99.3055 out of 100, above the 83.1 national average, and filed 1,190 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MARIANNE ALEXANDER, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 02/28/2006

NPI 1598731424

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

1,190 1% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

MIPS final score

99.3055/100 16.2055% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in New Jersey

How Adult Health Nurse Practitioner compares to other specialties among New Jersey providers

New Jersey providers

Adult Health Nurse Practitioner share within New Jersey

1. Adult Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Health Nurse Practitioner share within New Jersey

Medicare quality performance — MIPS

MARIANNE ALEXANDER, MD's 2023 MIPS final score plotted against the Adult Health Nurse Practitioner national average

High performer (top quartile)
MIPS Final Score
99.3055/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Adult Health Nurse Practitioner) — 99.3055/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Adult Health Nurse Practitioner) — 99.3055/100 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).

MARIANNE ALEXANDER, MD is a Adult Health Nurse Practitioner provider practicing in VOORHEES, New Jersey, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1598731424. 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.

MARIANNE ALEXANDER, MD appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding MD credentials at 6100 MAIN ST, VOORHEES, NJ, 08043, with a listed phone of (856) 673-4912. NPI 1598731424 was issued on 02/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALEXANDER 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 1,190 prescription claims written by this provider, covering 191 Medicare beneficiaries and totaling roughly $41K in drug spend, with an opioid prescribing rate of 1.6%. 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 99.3055/100 for the 2023 performance year (Quality 80.9624), compared with the national average of 83.1.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 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

6100 MAIN ST
VOORHEES, NJ 08043

Provider Details

NPI 1598731424
Specialty Adult Health Nurse Practitioner
Credentials MD
Gender Female
NPI Issued 02/28/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

99.3055
Final Score
Avg: 83.1
80.9624
Quality
99.4585
Promoting Interoperability

Reporting: Alternative Payment Model

Medicare Part D Prescribing Data

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

1,190
Total Claims
$41K
Total Drug Cost
191
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,936
Total Day Supply
86,634
Generic Drug Cost
$26K
Opioid Claims
19 (1.6% rate)
Antibiotic Claims
16

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
1.03
Age Distribution
<65: 12, 65-74: 111, 75-84: 54, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Rosuvastatin Calcium
92
Amlodipine Besylate
86
Atorvastatin Calcium
69
Hydrochlorothiazide
51
Levothyroxine Sodium
51
Escitalopram Oxalate
45
Lisinopril
42
Losartan Potassium
40
Metoprolol Succinate
39
Sertraline Hcl
33

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

Adult Health Nurse Practitioner Overview

How MARIANNE ALEXANDER, MD fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

MARIANNE ALEXANDER, MD's 1,190 claims are below the specialty average of 1,201.

Nearby Adult Health Nurse Practitioner Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as ALEXANDER.

Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARIANNE ALEXANDER, MD's specialty?
MARIANNE ALEXANDER, MD specializes in Adult Health Nurse Practitioner and practices in VOORHEES, New Jersey. Credentials: MD.
How much does MARIANNE ALEXANDER, MD prescribe under Medicare Part D?
In 2023, MARIANNE ALEXANDER, MD wrote 1,190 Medicare Part D claims totaling $41K in drug costs for 191 beneficiaries.
What is MARIANNE ALEXANDER, MD's Medicare quality score?
MARIANNE ALEXANDER, MD has a CMS MIPS Final Score of 99.3055/100 (Quality: 80.9624). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARIANNE ALEXANDER, MD located?
MARIANNE ALEXANDER, MD is located at 6100 MAIN ST, VOORHEES, NJ, 08043. Phone: (856) 673-4912.
What is MARIANNE ALEXANDER, MD's NPI number?
MARIANNE ALEXANDER, MD's National Provider Identifier (NPI) is 1598731424, issued on 02/28/2006.
Does MARIANNE ALEXANDER, MD prescribe opioids?
Yes, MARIANNE ALEXANDER, MD had 19 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does MARIANNE ALEXANDER, MD prescribe most often?
Based on 2023 Medicare Part D data, MARIANNE ALEXANDER, MD's most frequently prescribed drugs include Rosuvastatin Calcium, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIANNE ALEXANDER, MD accept Medicare?
MARIANNE ALEXANDER, MD appears in CMS Medicare data with 1,190 Part D claims and 191 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIANNE ALEXANDER, MD's credentials?
MARIANNE ALEXANDER, MD's NPI is 1598731424 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