2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1447821137
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STELLA CHEMARUM

Psychiatric/Mental Health Nurse Practitioner in COTTAGE GROVE, Minnesota. 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
621
Medicare Part D claims · 45 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

STELLA CHEMARUM filed 621 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in COTTAGE GROVE, Minnesota, prescribing 92% generic.

621
Part D claims, 2023
92%
generic prescribing

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.

STELLA CHEMARUM's Medicare Part D volume vs every U.S. prescriber

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

621 Top 31% higher than 69% 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%). This entry sits in this band. 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 STELLA CHEMARUM?

Quality data not reported

NPI registry status

Active

Issued 07/05/2021

NPI 1447821137

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

621 33% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in Minnesota

How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Minnesota providers

Minnesota providers

Psychiatric/Mental Health Nurse Practitioner share within Minnesota

1. Psychiatric/Mental Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Nurse Practitioner share within Minnesota

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatric/Mental Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatric/Mental Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — 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).

STELLA CHEMARUM appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider at 6853 99TH ST S, COTTAGE GROVE, MN, 55016, with a listed phone of (612) 600-2856. NPI 1447821137 was issued on 07/05/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHEMARUM 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 621 prescription claims written by this provider, covering 45 Medicare beneficiaries and totaling roughly $99K in drug spend, split 8% brand-name and 92% 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.

Psychiatric/Mental Health Nurse Practitioner is a mid-sized specialty nationwide, with 39,953 enrolled providers across 54 states and an average of 927 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

6853 99TH ST S
COTTAGE GROVE, MN 55016

Provider Details

NPI 1447821137
Specialty Psychiatric/Mental Health Nurse Practitioner
Gender Female
NPI Issued 07/05/2021

Hospital and facility affiliations

Facilities where STELLA CHEMARUM 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.

HAMM MEMORIAL PSYCHIATRIC CLINIC
SAINT PAUL, MN

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

STELLA CHEMARUM — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 621 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.

621
Total Claims
$99K
Total Drug Cost
45
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
750
Total Day Supply
21,420
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$89K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
57.3 years
Avg HCC Risk Score
1.37
Gender Split
64% female / 36% male
Age Distribution
<65: 25, 65-74: 17, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What STELLA CHEMARUM 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
Clonazepam
43
Mirtazapine
41
Quetiapine Fumarate
40
Risperidone
38
Bupropion Xl
Bupropion Hcl
37
Alprazolam
31
Trazodone Hcl
31
Bupropion Hcl Sr
Bupropion Hcl
26
Clozaril
Clozapine
24
Sertraline Hcl
23

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

Psychiatric/Mental Health Nurse Practitioner Overview

How STELLA CHEMARUM fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.

39,953
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
927
Avg Claims per Provider

STELLA CHEMARUM's 621 claims are below the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Minnesota

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

Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is STELLA CHEMARUM's specialty?
STELLA CHEMARUM specializes in Psychiatric/Mental Health Nurse Practitioner and practices in COTTAGE GROVE, Minnesota.
How much does STELLA CHEMARUM prescribe under Medicare Part D?
In 2023, STELLA CHEMARUM wrote 621 Medicare Part D claims totaling $99K in drug costs for 45 beneficiaries.
Where is STELLA CHEMARUM located?
STELLA CHEMARUM is located at 6853 99TH ST S, COTTAGE GROVE, MN, 55016. Phone: (612) 600-2856.
What is STELLA CHEMARUM's NPI number?
STELLA CHEMARUM's National Provider Identifier (NPI) is 1447821137, issued on 07/05/2021.
Does STELLA CHEMARUM prescribe more brand-name or generic drugs?
STELLA CHEMARUM's prescribing is 8% brand-name and 92% generic drugs by claim count, with $89K in brand drug costs.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US?
There are 39,953 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 927 Medicare Part D claims per year.
What drugs does STELLA CHEMARUM prescribe most often?
Based on 2023 Medicare Part D data, STELLA CHEMARUM's most frequently prescribed drugs include Clonazepam, Mirtazapine, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STELLA CHEMARUM accept Medicare?
STELLA CHEMARUM appears in CMS Medicare data with 621 Part D claims and 45 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STELLA CHEMARUM's credentials?
STELLA CHEMARUM's NPI is 1447821137. 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