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2026 NPPES data Foot Surgery Podiatrist NPI 1851304828 DPM
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Karen Kost-Rios, DPM

Foot Surgery Podiatrist in Manchester, New Hampshire.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,524 in Foot Surgery Podiatrist, 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
32
Medicare Part D claims · 25 beneficiaries · Foot Surgery Podiatrist avg: 359
MIPS score
69.4/100
▼ 14 pts below national avg 83.5 · Mid-tier
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Compiled from official public sources by the editorial process.

What the federal data shows

Karen Kost-Rios, DPM reported a CMS MIPS final score of 69.4/100 - below the 83.5 national average - and filed 32 Medicare Part D claims in 2024.

69.4/100
MIPS score · -14 vs avg
32
Part D claims, 2024
≥8th
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Karen Kost-Rios, DPM

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1851304828), first enumerated 08/14/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 32 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 69.4/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1851304828 · Foot Surgery Podiatrist

NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-LOW · RX-TRACE · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1851304828
  • ENUM-LEGACY 2006
  • TAX-NARROW 1,524
  • MIPS-LOW 69.4/100
  • RX-TRACE 32
  • BOOK-THIN 5 in New Hampshire
  • PHOTO-FINISH Lisa Klemeyer · ±0.3

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Karen Kost-Rios, DPM's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

69 ≥ 8th percentile 8% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). This entry sits in this band. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Karen Kost-Rios, DPM sits

This provider among foot surgery podiatrist peers

Across the 341 foot surgery podiatrist providers who report both Medicare Part D prescribing and a MIPS quality score, Karen Kost-Rios, DPM writes more Part D claims than 4% of them and scores higher on MIPS quality than 44% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 53Karen Kost-Rios, DPM, Part D claim volume, percentile in specialty: 4 · MIPS quality, percentile: 44
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one foot surgery podiatrist peer from a representative sample of 60; the gold marker is Karen Kost-Rios, DPM. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Karen Kost-Rios, DPM?

Below national average

NPI registry status

Active

Issued 08/14/2006

NPI 1851304828

Primary specialty

Foot Surgery Podiatrist

Niche

1,524 US NPIs in this specialty

Medicare Part D claims

32 91% vs specialty avg

2024 prescription claims

Specialty avg: 359

MIPS final score

69.4/100 14.1 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in New Hampshire

How Foot Surgery Podiatrist compares to other specialties among New Hampshire providers

New Hampshire providers
Mental Health Counselor6.6%Physical Therapist5%Clinical Social Worker4.4%Pharmacist3.9%Case Manager/Care Coordinator3.8%Student in an Organized Heal…3.7%Foot Surgery Podiatrist0%
Largest specialties in New Hampshire (% of in-state providers)

Medicare quality performance, MIPS

Karen Kost-Rios, DPM's 2023 MIPS final score plotted against the Foot Surgery Podiatrist national average

Below national average
MIPS Final Score
69.4/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%69.4%
MIPS final score (Foot Surgery Podiatrist) - 69.4/100 vs national avg 83.5
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).

Practice Address

100 HITCHCOCK WAY
Manchester, NH 03104
(603) 695-2500

Provider Details

NPI 1851304828
Specialty Foot Surgery Podiatrist
Credentials DPM
Gender Female
NPI Issued 08/14/2006

CMS Quality Score (MIPS)

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

69.4014
Final Score
Measured-score avg: 83.5
55.6429
Quality
42.3618
Cost
100
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

32
Total Claims
$428
Total Drug Cost
25
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
41.933
Total Day Supply
945
Brand Drug Cost
$0
Generic Drug Cost
$428

Patient Demographics

Average Patient Age
68.4 years
Avg HCC Risk Score
1.55
More Foot Surgery Podiatrist in NH → All providers in New Hampshire → Compare specialties →

Foot Surgery Podiatrist Overview

How Karen Kost-Rios, DPM fits within the Foot Surgery Podiatrist landscape nationally.

1,524
Foot Surgery Podiatrist Providers in US
53
States with Foot Surgery Podiatrist
359
Avg Claims per Provider

Karen Kost-Rios, DPM's 32 claims are below the specialty average of 359.

Nationwide Foot Surgery Podiatrist peers with similar MIPS or enrollment year

Two federal-record peer sets for Kost-Rios, both outside New Hampshire so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (69.4 here).

Lisa Klemeyer 69.7 FL Sharone Stern 68.8 NY Joseph Werner 70 MD Christopher Hogue 68.8 IN

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Faith Chin Washington, DC Susan Gamble Philadelphia, PA Karen Walsh Marysville, MI Mitchell Rogers Flower Mound, TX

Nearby Foot Surgery Podiatrist Providers in New Hampshire

Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as Kost-Rios.

One of 5 Foot Surgery Podiatrist providers enrolled in New Hampshire, 4 are shown here.

Dr. Dieter Fellner
DPM
Gorham, NH
Dr. Ilana Itenberg
DPM
Nashua, NH
Dr. Rosalie Lopresto
DPM
Portsmouth, NH
Dr. Brian Nagy
DPM
Portsmouth, NH

Compare Foot Surgery Podiatrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is Karen Kost-Rios, DPM's specialty? ▼
Karen Kost-Rios, DPM specializes in Foot Surgery Podiatrist and practices in Manchester, New Hampshire. Credentials: DPM.
How much does Karen Kost-Rios, DPM prescribe under Medicare Part D? ▼
In 2024, Karen Kost-Rios, DPM wrote 32 Medicare Part D claims totaling $428 in drug costs for 25 beneficiaries.
What is Karen Kost-Rios, DPM's Medicare quality score? ▼
Karen Kost-Rios, DPM has a CMS MIPS Final Score of 69.4/100 (Quality: 55.6, Cost: 42.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Karen Kost-Rios, DPM located? ▼
Karen Kost-Rios, DPM is located at 100 HITCHCOCK WAY, Manchester, NH, 03104. Phone: (603) 695-2500.
What is Karen Kost-Rios, DPM's NPI number? ▼
Karen Kost-Rios, DPM's National Provider Identifier (NPI) is 1851304828, issued on 08/14/2006.
How many Foot Surgery Podiatrist providers are there in the US? ▼
There are 1,524 Foot Surgery Podiatrist providers across 53 states in the US. The average Foot Surgery Podiatrist provider writes 359 Medicare Part D claims per year.
Does Karen Kost-Rios, DPM accept Medicare? ▼
Karen Kost-Rios, DPM appears in CMS Medicare data with 32 Part D claims and 25 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Kost-Rios, DPM's credentials? ▼
Karen Kost-Rios, DPM's NPI is 1851304828 with credentials DPM. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 editorial process.

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 August 2026.