2026 NPPES data Obstetrics & Gynecology Physician NPI 1144251786 MD
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HELEN FREDERICKSON, MD

Obstetrics & Gynecology Physician in RAPID CITY, South Dakota. 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
223
Medicare Part D claims · 49 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.5814/100
▲ 14 pts above national avg 83.1 · [object Object]

What the federal data shows

HELEN FREDERICKSON, MD reported a CMS MIPS final score of 97.5814/100 — above the 83.1 national average — and filed 223 Medicare Part D claims in 2023.

97.5814/100
MIPS score · +14 vs avg
223
Part D claims, 2023
92%
generic prescribing
Likely
board-certified (heuristic)

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.

HELEN FREDERICKSON, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

98 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

HELEN FREDERICKSON, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about HELEN FREDERICKSON, MD?

High performer (top quartile)

NPI registry status

Active

Issued 07/05/2006

NPI 1144251786

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

223 25% vs specialty avg

2023 prescription claims

Specialty avg: 179

MIPS final score

97.5814/100 14.481400000000008% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in South Dakota

How Obstetrics & Gynecology Physician compares to other specialties among South Dakota providers

South Dakota providers

Obstetrics & Gynecology Physician share within South Dakota

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within South Dakota

Medicare quality performance — MIPS

HELEN FREDERICKSON, MD's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average

High performer (top quartile)
MIPS Final Score
97.5814/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Obstetrics & Gynecology Physician) — 97.5814/100 vs national avg 83.1

0%100%National avg83%97.6%
MIPS final score (Obstetrics & Gynecology Physician) — 97.5814/100 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).

HELEN FREDERICKSON, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 353 FAIRMONT BLVD, RAPID CITY, SD, 57701, with a listed phone of (605) 755-2300. NPI 1144251786 was issued on 07/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FREDERICKSON 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 223 prescription claims written by this provider, covering 49 Medicare beneficiaries and totaling roughly $113K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 5.4%. 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 97.5814/100 for the 2023 performance year (Quality 86.5348), compared with the national average of 83.1.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

353 FAIRMONT BLVD
RAPID CITY, SD 57701

Provider Details

NPI 1144251786
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Female
NPI Issued 07/05/2006

CMS Quality Score (MIPS)

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

97.5814
Final Score
Avg: 83.1
86.5348
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Brand vs generic prescribing mix · Generic-heavy

HELEN FREDERICKSON, MD — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 223 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.

223
Total Claims
$113K
Total Drug Cost
49
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
320
Total Day Supply
7,420
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$109K
Generic Drug Cost
$4K
Opioid Claims
12 (5.4% rate)

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.86
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

What HELEN FREDERICKSON, MD 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
Letrozole
31
Prochlorperazine Maleate
26
Ondansetron Hcl
24
Dexamethasone
17
Oxybutynin Chloride Er
Oxybutynin Chloride
14
Triamcinolone Acetonide
12

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

Obstetrics & Gynecology Physician Overview

How HELEN FREDERICKSON, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

HELEN FREDERICKSON, MD's 223 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in South Dakota

Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as FREDERICKSON.

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is HELEN FREDERICKSON, MD's specialty?
HELEN FREDERICKSON, MD specializes in Obstetrics & Gynecology Physician and practices in RAPID CITY, South Dakota. Credentials: MD.
How much does HELEN FREDERICKSON, MD prescribe under Medicare Part D?
In 2023, HELEN FREDERICKSON, MD wrote 223 Medicare Part D claims totaling $113K in drug costs for 49 beneficiaries.
What is HELEN FREDERICKSON, MD's Medicare quality score?
HELEN FREDERICKSON, MD has a CMS MIPS Final Score of 97.5814/100 (Quality: 86.5348). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is HELEN FREDERICKSON, MD located?
HELEN FREDERICKSON, MD is located at 353 FAIRMONT BLVD, RAPID CITY, SD, 57701. Phone: (605) 755-2300.
What is HELEN FREDERICKSON, MD's NPI number?
HELEN FREDERICKSON, MD's National Provider Identifier (NPI) is 1144251786, issued on 07/05/2006.
Does HELEN FREDERICKSON, MD prescribe more brand-name or generic drugs?
HELEN FREDERICKSON, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $109K in brand drug costs.
Does HELEN FREDERICKSON, MD prescribe opioids?
Yes, HELEN FREDERICKSON, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 5.4%.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does HELEN FREDERICKSON, MD prescribe most often?
Based on 2023 Medicare Part D data, HELEN FREDERICKSON, MD's most frequently prescribed drugs include Letrozole, Prochlorperazine Maleate, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HELEN FREDERICKSON, MD accept Medicare?
HELEN FREDERICKSON, MD appears in CMS Medicare data with 223 Part D claims and 49 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HELEN FREDERICKSON, MD's credentials?
HELEN FREDERICKSON, MD's NPI is 1144251786 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