2026 NPPES data Physician Assistant NPI 1649433707 PA-C
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KRISTIN PHELPS, PA-C

Physician Assistant in GRINNELL, Iowa. 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
4K
Medicare Part D claims · 315 beneficiaries · Physician Assistant avg: 790
Industry payments
$18.22
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KRISTIN PHELPS, PA-C filed 3,515 Medicare Part D claims in 2023 as a Physician Assistant in GRINNELL, Iowa.

4K
Part D claims, 2023
$18.22
industry payments (Sunshine Act)

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.

KRISTIN PHELPS, PA-C's Medicare Part D volume vs every U.S. prescriber

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

3,515 Top 10% higher than 90% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 KRISTIN PHELPS, PA-C?

Quality data not reported

NPI registry status

Active

Issued 07/08/2008

NPI 1649433707

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

3,515 345% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Iowa

How Physician Assistant compares to other specialties among Iowa providers

Iowa providers

Physician Assistant share within Iowa

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Iowa

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — 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).

KRISTIN PHELPS, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 210 4TH AVE, GRINNELL, IA, 50112, with a listed phone of (641) 236-2055. NPI 1649433707 was issued on 07/08/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PHELPS 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 3,515 prescription claims written by this provider, covering 315 Medicare beneficiaries and totaling roughly $186K in drug spend, with an opioid prescribing rate of 0.6%. 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

210 4TH AVE
GRINNELL, IA 50112

Provider Details

NPI 1649433707
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 07/08/2008

Hospital and facility affiliations

Facilities where KRISTIN PHELPS, PA-C 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.

GRINNELL REGIONAL MEDICAL CENTER
★★☆☆☆ 2/5
GRINNELL, IA
Acute Care Hospitals
CMS CCN: 160147

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for KRISTIN PHELPS, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$18

Largest payer

Novo Nordisk Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

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

3,515
Total Claims
$186K
Total Drug Cost
315
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,133
Total Day Supply
240,162
Generic Drug Cost
$44K
Opioid Claims
22 (0.6% rate)
Antibiotic Claims
53

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
0.97
Gender Split
78% female / 22% male
Age Distribution
<65: 36, 65-74: 146, 75-84: 91, 85+: 42

Top Prescribed Drugs (Medicare Part D)

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

What KRISTIN PHELPS, PA-C 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
Atorvastatin Calcium
344
Levothyroxine Sodium
254
Lisinopril
226
Losartan Potassium
181
Amlodipine Besylate
148
Omeprazole
134
Sertraline Hcl
113
Hydrochlorothiazide
112
Metoprolol Succinate
109
Metformin Hcl
97

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

Physician Assistant Overview

How KRISTIN PHELPS, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

KRISTIN PHELPS, PA-C's 3,515 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in Iowa

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

Compare Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is KRISTIN PHELPS, PA-C's specialty?
KRISTIN PHELPS, PA-C specializes in Physician Assistant and practices in GRINNELL, Iowa. Credentials: PA-C.
How much does KRISTIN PHELPS, PA-C prescribe under Medicare Part D?
In 2023, KRISTIN PHELPS, PA-C wrote 3,515 Medicare Part D claims totaling $186K in drug costs for 315 beneficiaries.
Where is KRISTIN PHELPS, PA-C located?
KRISTIN PHELPS, PA-C is located at 210 4TH AVE, GRINNELL, IA, 50112. Phone: (641) 236-2055.
What is KRISTIN PHELPS, PA-C's NPI number?
KRISTIN PHELPS, PA-C's National Provider Identifier (NPI) is 1649433707, issued on 07/08/2008.
Does KRISTIN PHELPS, PA-C prescribe opioids?
Yes, KRISTIN PHELPS, PA-C had 22 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does KRISTIN PHELPS, PA-C prescribe most often?
Based on 2023 Medicare Part D data, KRISTIN PHELPS, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KRISTIN PHELPS, PA-C accept Medicare?
KRISTIN PHELPS, PA-C appears in CMS Medicare data with 3,515 Part D claims and 315 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KRISTIN PHELPS, PA-C's credentials?
KRISTIN PHELPS, PA-C's NPI is 1649433707 with credentials PA-C. 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