2026 NPPES data Medical Physician Assistant NPI 1649879081 PA-C
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GRACE MULIAWAN, PA-C

Medical Physician Assistant in COEUR D ALENE, Idaho. 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
583
Medicare Part D claims · 100 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$3.0K
122 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

GRACE MULIAWAN, PA-C filed 583 Medicare Part D claims in 2023 as a Medical Physician Assistant in COEUR D ALENE, Idaho, prescribing 81% generic.

583
Part D claims, 2023
81%
generic prescribing
$3.0K
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.

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

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

583 Top 34% higher than 66% 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%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 GRACE MULIAWAN, PA-C?

Quality data not reported

NPI registry status

Active

Issued 10/17/2020

NPI 1649879081

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

583 46% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Idaho

How Medical Physician Assistant compares to other specialties among Idaho providers

Idaho providers

Medical Physician Assistant share within Idaho

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical 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).

GRACE MULIAWAN, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 3815 N SCHREIBER WAY STE 101, COEUR D ALENE, ID, 83815, with a listed phone of (208) 755-2804. NPI 1649879081 was issued on 10/17/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MULIAWAN 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 583 prescription claims written by this provider, covering 100 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 19% brand-name and 81% generic by claim count, with an opioid prescribing rate of 22.0%. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

3815 N SCHREIBER WAY STE 101
COEUR D ALENE, ID 83815

Provider Details

NPI 1649879081
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 10/17/2020

Hospital and facility affiliations

Facilities where GRACE MULIAWAN, 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.

CHALLIS AREA HEALTH CENTER INCORPORATED
CHALLIS, ID

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 GRACE MULIAWAN, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$3.0K

Largest payer

PFIZER 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 · Typical

GRACE MULIAWAN, PA-C — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 583 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.

583
Total Claims
$1.2M
Total Drug Cost
100
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
812
Total Day Supply
21,425
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$1.2M
Generic Drug Cost
$61K
Opioid Claims
128 (22.0% rate)
Antibiotic Claims
21

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.80
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

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

What GRACE MULIAWAN, 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
50
Letrozole
48
Morphine Sulfate Er
Morphine Sulfate
40
Dexamethasone
33
Levothyroxine Sodium
29
Prochlorperazine Maleate
27
Ondansetron Odt
Ondansetron
24
Oxycodone Hcl
19
Acyclovir
15
Prednisone
15

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

Medical Physician Assistant Overview

How GRACE MULIAWAN, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

GRACE MULIAWAN, PA-C's 583 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Idaho

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

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

Frequently Asked Questions

What is GRACE MULIAWAN, PA-C's specialty?
GRACE MULIAWAN, PA-C specializes in Medical Physician Assistant and practices in COEUR D ALENE, Idaho. Credentials: PA-C.
How much does GRACE MULIAWAN, PA-C prescribe under Medicare Part D?
In 2023, GRACE MULIAWAN, PA-C wrote 583 Medicare Part D claims totaling $1.2M in drug costs for 100 beneficiaries.
Where is GRACE MULIAWAN, PA-C located?
GRACE MULIAWAN, PA-C is located at 3815 N SCHREIBER WAY STE 101, COEUR D ALENE, ID, 83815. Phone: (208) 755-2804.
What is GRACE MULIAWAN, PA-C's NPI number?
GRACE MULIAWAN, PA-C's National Provider Identifier (NPI) is 1649879081, issued on 10/17/2020.
Does GRACE MULIAWAN, PA-C prescribe more brand-name or generic drugs?
GRACE MULIAWAN, PA-C's prescribing is 19% brand-name and 81% generic drugs by claim count, with $1.2M in brand drug costs.
Does GRACE MULIAWAN, PA-C prescribe opioids?
Yes, GRACE MULIAWAN, PA-C had 128 opioid claims in 2023 with an opioid prescribing rate of 22.0%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does GRACE MULIAWAN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, GRACE MULIAWAN, PA-C's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Letrozole, Morphine Sulfate Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GRACE MULIAWAN, PA-C accept Medicare?
GRACE MULIAWAN, PA-C appears in CMS Medicare data with 583 Part D claims and 100 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GRACE MULIAWAN, PA-C's credentials?
GRACE MULIAWAN, PA-C's NPI is 1649879081 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