NPI registry status
Active
2026 NPPES data Adult Psychiatric/Mental Health Clinical Nurse Specialist NPI 1083818991 R.N., M.S.N., C.S.
Verify on CMS → Susan Fredrickson, R.N., M.S.N., C.S.
Adult Psychiatric/Mental Health Clinical Nurse Specialist in Brewster, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 955 in Adult Psychiatric/Mental Health Clinical Nurse Specialist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
970
Medicare Part D claims · 78 beneficiaries · Adult Psychiatric/Mental Health Clinical Nurse Specialist avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Susan Fredrickson, R.N., M.S.N., C.S. filed 970 Medicare Part D claims in 2023 as a Adult Psychiatric/Mental Health Clinical Nurse Specialist in Brewster, Massachusetts, prescribing 95% generic.
- 970
- Part D claims, 2023
- 95%
- 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.
Susan Fredrickson, R.N., M.S.N., C.S.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
970 Top 25% higher than 75% of 1,370,886 prescribers
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 Susan Fredrickson, R.N., M.S.N., C.S.?
Quality data not reportedPrimary specialty
Adult Psychiatric/Mental Health Clinical Nurse Specialist
Medicare Part D claims
970 26% vs specialty avg
Specialty distribution in Massachusetts
How Adult Psychiatric/Mental Health Clinical Nurse Specialist compares to other specialties among Massachusetts providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Adult Psychiatric/Mental Health Clinical Nurse Specialist. Verify directly:
How MIPS and board certification work
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).
Susan Fredrickson, R.N., M.S.N., C.S. appears in the CMS NPPES registry as an Adult Psychiatric/Mental Health Clinical Nurse Specialist provider holding R.N., M.S.N., C.S. credentials at 23-25 BAY STATE COURT, Brewster, MA, 02631, with a listed phone of (508) 240-7964. NPI 1083818991 was issued on 06/13/2007.
Medicare Part D records for calendar year 2023 show 970 prescription claims written by this provider, covering 78 Medicare beneficiaries and totaling roughly $120K in drug spend, split 5% brand-name and 95% generic by claim count.
Adult Psychiatric/Mental Health Clinical Nurse Specialist is a narrow specialty nationwide, with 955 enrolled providers across 51 states and an average of 1,309 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
Provider Details
| NPI | 1083818991 |
|---|---|
| Specialty | Adult Psychiatric/Mental Health Clinical Nurse Specialist |
| Credentials | R.N., M.S.N., C.S. |
| Gender | Female |
| NPI Issued | 06/13/2007 |
License & disciplinary context - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Susan Fredrickson, R.N., M.S.N., C.S.. To verify Susan Fredrickson, R.N., M.S.N., C.S.'s current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Susan Fredrickson, R.N., M.S.N., C.S. - brand share 5.0%
Adult Psychiatric/Mental Health Clinical Nurse Specialist average
5% brand-name claims vs 95% generic, on 970 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.
970
Total Claims
$120K
Total Drug Cost
78
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,757
- Total Day Supply
- 52,346
- Brand vs Generic
- 5% brand / 95% generic
- Brand Drug Cost
- $68K
- Generic Drug Cost
- $52K
Patient Demographics
- Average Patient Age
- 70.7 years
- Avg HCC Risk Score
- 1.03
- Gender Split
- 76% female / 24% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Susan Fredrickson, R.N., M.S.N., C.S. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lorazepam
Lorazepam
90 claims
- Dextroamphetamine-…
Dextroamphetamine-Amphetamine
86 claims
- Clonazepam
Clonazepam
72 claims
- Trazodone Hcl
Trazodone Hcl
69 claims
- Escitalopram Oxalate
Escitalopram Oxalate
64 claims
- Bupropion Xl
Bupropion Xl
51 claims
- Zolpidem Tartrate
Zolpidem Tartrate
51 claims
- Duloxetine Hcl
Duloxetine Hcl
36 claims
| Drug | Claims |
|---|---|
| Lorazepam | 90 |
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 86 |
| Clonazepam | 72 |
| Trazodone Hcl | 69 |
| Escitalopram Oxalate | 64 |
| Bupropion Xl Bupropion Hcl | 51 |
| Zolpidem Tartrate | 51 |
| Duloxetine Hcl | 36 |
| Desvenlafaxine Succinate Er Desvenlafaxine Succinate | 33 |
| Fluoxetine Hcl | 31 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Adult Psychiatric/Mental Health Clinical Nurse Specialist in MA →
All providers in Massachusetts →
Compare specialties →
Adult Psychiatric/Mental Health Clinical Nurse Specialist Overview
How Susan Fredrickson, R.N., M.S.N., C.S. fits within the Adult Psychiatric/Mental Health Clinical Nurse Specialist landscape nationally.
955
Adult Psychiatric/Mental Health Clinical Nurse Specialist Providers in US
51
States with Adult Psychiatric/Mental Health Clinical Nurse Specialist
1,309
Avg Claims per Provider
Susan Fredrickson, R.N., M.S.N., C.S.'s 970 claims are below the specialty average of 1,309.
Nearby Adult Psychiatric/Mental Health Clinical Nurse Specialist Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Fredrickson.
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Massachusetts medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Adult Psychiatric/Mental Health Clinical Nurse Specialist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Susan Fredrickson, R.N., M.S.N., C.S.'s specialty? ▼
Susan Fredrickson, R.N., M.S.N., C.S. specializes in Adult Psychiatric/Mental Health Clinical Nurse Specialist and practices in Brewster, Massachusetts. Credentials: R.N., M.S.N., C.S..
How much does Susan Fredrickson, R.N., M.S.N., C.S. prescribe under Medicare Part D? ▼
In 2023, Susan Fredrickson, R.N., M.S.N., C.S. wrote 970 Medicare Part D claims totaling $120K in drug costs for 78 beneficiaries.
Where is Susan Fredrickson, R.N., M.S.N., C.S. located? ▼
Susan Fredrickson, R.N., M.S.N., C.S. is located at 23-25 BAY STATE COURT, Brewster, MA, 02631. Phone: (508) 240-7964.
What is Susan Fredrickson, R.N., M.S.N., C.S.'s NPI number? ▼
Susan Fredrickson, R.N., M.S.N., C.S.'s National Provider Identifier (NPI) is 1083818991, issued on 06/13/2007.
Does Susan Fredrickson, R.N., M.S.N., C.S. prescribe more brand-name or generic drugs? ▼
Susan Fredrickson, R.N., M.S.N., C.S.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $68K in brand drug costs.
How many Adult Psychiatric/Mental Health Clinical Nurse Specialist providers are there in the US? ▼
There are 955 Adult Psychiatric/Mental Health Clinical Nurse Specialist providers across 51 states in the US. The average Adult Psychiatric/Mental Health Clinical Nurse Specialist provider writes 1,309 Medicare Part D claims per year.
What drugs does Susan Fredrickson, R.N., M.S.N., C.S. prescribe most often? ▼
Based on 2023 Medicare Part D data, Susan Fredrickson, R.N., M.S.N., C.S.'s most frequently prescribed drugs include Lorazepam, Dextroamphetamine-Amphetamine, Clonazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Susan Fredrickson, R.N., M.S.N., C.S. accept Medicare? ▼
Susan Fredrickson, R.N., M.S.N., C.S. appears in CMS Medicare data with 970 Part D claims and 78 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Susan Fredrickson, R.N., M.S.N., C.S.'s credentials? ▼
Susan Fredrickson, R.N., M.S.N., C.S.'s NPI is 1083818991 with credentials R.N., M.S.N., C.S.. 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.