2026 NPPES data Physician Assistant NPI 1427617471 PA-C
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SUSAN GRAVES, PA-C

Physician Assistant in NEWTON, 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 · 162 beneficiaries · Physician Assistant avg: 790
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.6K
86 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SUSAN GRAVES, PA-C filed 3,605 Medicare Part D claims in 2023 as a Physician Assistant in NEWTON, Iowa, prescribing 92% generic.

4K
Part D claims, 2023
92%
generic prescribing
$1.6K
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.

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

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

3,605 Top 9% higher than 91% 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 SUSAN GRAVES, PA-C?

Quality data not reported

NPI registry status

Active

Issued 06/12/2019

NPI 1427617471

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

3,605 356% 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).

SUSAN GRAVES, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 1123 1ST AVE E STE 200, NEWTON, IA, 50208, with a listed phone of (641) 792-4012. NPI 1427617471 was issued on 06/12/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRAVES 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 3,605 prescription claims written by this provider, covering 162 Medicare beneficiaries and totaling roughly $569K 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.

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

1123 1ST AVE E STE 200
NEWTON, IA 50208

Provider Details

NPI 1427617471
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 06/12/2019

Hospital and facility affiliations

Facilities where SUSAN GRAVES, 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.

CAPSTONE BEHAVIORAL HEALTHCARE INC
GRINNELL, IA

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 SUSAN GRAVES, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$1.6K

Largest payer

Supernus Pharmaceuticals, 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.

Brand vs generic prescribing mix · Generic-heavy

SUSAN GRAVES, PA-C — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 3,605 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.

3,605
Total Claims
$569K
Total Drug Cost
162
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,080
Total Day Supply
118,070
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$469K
Generic Drug Cost
$100K

Patient Demographics

Average Patient Age
59.4 years
Avg HCC Risk Score
1.34
Gender Split
64% female / 36% male
Age Distribution
<65: 100, 65-74: 51, 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 SUSAN GRAVES, 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
Trazodone Hcl
268
Duloxetine Hcl
255
Buspirone Hcl
228
Aripiprazole
189
Clonazepam
185
Bupropion Xl
Bupropion Hcl
161
Sertraline Hcl
161
Quetiapine Fumarate
142
Lorazepam
135
Hydroxyzine Hcl
129

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

Physician Assistant Overview

How SUSAN GRAVES, 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

SUSAN GRAVES, PA-C's 3,605 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 GRAVES.

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

Frequently Asked Questions

What is SUSAN GRAVES, PA-C's specialty?
SUSAN GRAVES, PA-C specializes in Physician Assistant and practices in NEWTON, Iowa. Credentials: PA-C.
How much does SUSAN GRAVES, PA-C prescribe under Medicare Part D?
In 2023, SUSAN GRAVES, PA-C wrote 3,605 Medicare Part D claims totaling $569K in drug costs for 162 beneficiaries.
Where is SUSAN GRAVES, PA-C located?
SUSAN GRAVES, PA-C is located at 1123 1ST AVE E STE 200, NEWTON, IA, 50208. Phone: (641) 792-4012.
What is SUSAN GRAVES, PA-C's NPI number?
SUSAN GRAVES, PA-C's National Provider Identifier (NPI) is 1427617471, issued on 06/12/2019.
Does SUSAN GRAVES, PA-C prescribe more brand-name or generic drugs?
SUSAN GRAVES, PA-C's prescribing is 8% brand-name and 92% generic drugs by claim count, with $469K in brand drug costs.
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 SUSAN GRAVES, PA-C prescribe most often?
Based on 2023 Medicare Part D data, SUSAN GRAVES, PA-C's most frequently prescribed drugs include Trazodone Hcl, Duloxetine Hcl, Buspirone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SUSAN GRAVES, PA-C accept Medicare?
SUSAN GRAVES, PA-C appears in CMS Medicare data with 3,605 Part D claims and 162 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUSAN GRAVES, PA-C's credentials?
SUSAN GRAVES, PA-C's NPI is 1427617471 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