2026 NPPES data Infectious Disease Physician NPI 1891977278 MD
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MELANIE ENDERWICK, MD

Infectious Disease Physician 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
444
Medicare Part D claims · 105 beneficiaries · Infectious Disease Physician avg: 816

What the federal data shows

MELANIE ENDERWICK, MD filed 444 Medicare Part D claims in 2023 as a Infectious Disease Physician in COEUR D ALENE, Idaho.

444
Part D claims, 2023
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.

MELANIE ENDERWICK, MD's Medicare Part D volume vs every U.S. prescriber

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

444 Top 38% higher than 62% 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

Board certification likely (heuristic — not verified)

MELANIE ENDERWICK, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — 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 MELANIE ENDERWICK, MD?

Quality data not reported

NPI registry status

Active

Issued 11/28/2007

NPI 1891977278

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

444 46% vs specialty avg

2023 prescription claims

Specialty avg: 816

Specialty distribution in Idaho

How Infectious Disease Physician compares to other specialties among Idaho providers

Idaho providers

Infectious Disease Physician share within Idaho

1. Infectious Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Infectious Disease Physician share within Idaho

Specialty board-certification context

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

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

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

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

MELANIE ENDERWICK, MD appears in the CMS NPPES registry as a Infectious Disease Physician provider holding MD credentials at 2120 W IRONWOOD CENTER DR, COEUR D ALENE, ID, 83814, with a listed phone of (208) 625-6944. NPI 1891977278 was issued on 11/28/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ENDERWICK 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 444 prescription claims written by this provider, covering 105 Medicare beneficiaries and totaling roughly $568K in drug spend. 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.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

2120 W IRONWOOD CENTER DR
COEUR D ALENE, ID 83814

Provider Details

NPI 1891977278
Specialty Infectious Disease Physician
Credentials MD
Gender Female
NPI Issued 11/28/2007

Hospital and facility affiliations

Facilities where MELANIE ENDERWICK, MD 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.

RCHP BILLINGS - MISSOULA LLC
MISSOULA, MT

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

Medicare Part D Prescribing Data

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

444
Total Claims
$568K
Total Drug Cost
105
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
545
Total Day Supply
12,620
Generic Drug Cost
$29K
Antibiotic Claims
235

Patient Demographics

Average Patient Age
65.7 years
Avg HCC Risk Score
2.29
Gender Split
34% female / 66% male
Age Distribution
<65: 38, 65-74: 43, 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 MELANIE ENDERWICK, 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
Doxycycline Hyclate
38
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
33
Ceftriaxone
Ceftriaxone Sodium
24
Daptomycin
20
Cephalexin
17
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
17
Levofloxacin
16
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
14
Descovy
Emtricitabine/Tenofov Alafenam
14
Metronidazole
14

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

Infectious Disease Physician Overview

How MELANIE ENDERWICK, MD fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

MELANIE ENDERWICK, MD's 444 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Idaho

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

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MELANIE ENDERWICK, MD's specialty?
MELANIE ENDERWICK, MD specializes in Infectious Disease Physician and practices in COEUR D ALENE, Idaho. Credentials: MD.
How much does MELANIE ENDERWICK, MD prescribe under Medicare Part D?
In 2023, MELANIE ENDERWICK, MD wrote 444 Medicare Part D claims totaling $568K in drug costs for 105 beneficiaries.
Where is MELANIE ENDERWICK, MD located?
MELANIE ENDERWICK, MD is located at 2120 W IRONWOOD CENTER DR, COEUR D ALENE, ID, 83814. Phone: (208) 625-6944.
What is MELANIE ENDERWICK, MD's NPI number?
MELANIE ENDERWICK, MD's National Provider Identifier (NPI) is 1891977278, issued on 11/28/2007.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does MELANIE ENDERWICK, MD prescribe most often?
Based on 2023 Medicare Part D data, MELANIE ENDERWICK, MD's most frequently prescribed drugs include Doxycycline Hyclate, Biktarvy, Ceftriaxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELANIE ENDERWICK, MD accept Medicare?
MELANIE ENDERWICK, MD appears in CMS Medicare data with 444 Part D claims and 105 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELANIE ENDERWICK, MD's credentials?
MELANIE ENDERWICK, MD's NPI is 1891977278 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.
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