2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1518345289 MD, MS
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Rachel Donaldson, MD, MS

Critical Care Medicine (Internal Medicine) Physician in Fresno, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,631 in Critical Care Medicine (Internal Medicine) Physician, 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
1K
Medicare Part D claims · 206 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
37%
generic claims · 63% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Rachel Donaldson, MD, MS filed 1,456 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in Fresno, California, prescribing 37% generic.

1K
Part D claims, 2023
37%
generic prescribing
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.

Rachel Donaldson, MD, MS's Medicare Part D volume vs every U.S. prescriber

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

1,456 Top 20% higher than 80% 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%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 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)

Rachel Donaldson, MD, MS 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 Rachel Donaldson, MD, MS?

Quality data not reported

NPI registry status

Active

Issued 05/13/2015

NPI 1518345289

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

1,456 36% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

Specialty distribution in California

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician - 17.3%Behavior Technician17.3%Marriage & Family Therapist - 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program - 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor - 3.9%Mental Health Counselor3.9%Pharmacist - 3.5%Pharmacist3.5%Clinical Social Worker - 3.1%Clinical Social Worker3.1%Critical Care Medicine (Internal Medicine) Physician - 0.1%Critical Care Medicine (Internal Medicine) Physician0.1%
Largest specialties in California (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Critical Care Medicine (Internal Medicine) Physician. Verify directly:

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).

Rachel Donaldson, MD, MS appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding MD, MS credentials at 155 N FRESNO ST, Fresno, CA, 93701, with a listed phone of (559) 499-6400. NPI 1518345289 was issued on 05/13/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Donaldson 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 1,456 prescription claims written by this provider, covering 206 Medicare beneficiaries and totaling roughly $1.0 million in drug spend, split 63% brand-name and 37% 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.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

155 N FRESNO ST
Fresno, CA 93701

Provider Details

NPI 1518345289
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials MD, MS
Gender Female
NPI Issued 05/13/2015

Hospital and facility affiliations

Facilities where Rachel Donaldson, MD, MS 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.

Permanente Medical Group Inc
Fresno, CA

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

License & disciplinary context - California MBC 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Rachel Donaldson, MD, MS. To verify Rachel Donaldson, MD, MS's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

Rachel Donaldson, MD, MS - brand share 63.0%
Critical Care Medicine (Internal Medicine) Physician average

63% brand-name claims vs 37% generic, on 1,456 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.

1,456
Total Claims
$1.0M
Total Drug Cost
206
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,021
Total Day Supply
57,310
Brand vs Generic
63% brand / 37% generic
Brand Drug Cost
$963K
Generic Drug Cost
$43K
Antibiotic Claims
91

Patient Demographics

Average Patient Age
76.4 years
Avg HCC Risk Score
2.14
Gender Split
69% female / 31% male

Top Prescribed Drugs (Medicare Part D)

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

What Rachel Donaldson, MD, MS 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
Albuterol Sulfate Hfa
Albuterol Sulfate
305
Spiriva Respimat
Tiotropium Bromide
190
Wixela Inhub
Fluticasone Propion/Salmeterol
93
Prednisone
91
Alvesco
Ciclesonide
65
Montelukast Sodium
63
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
61
Breztri Aerosphere
Budesonide/Glycopyr/Formoterol
55
Symbicort
Budesonide/Formoterol Fumarate
54
Advair Hfa
Fluticasone Propion/Salmeterol
50

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

Critical Care Medicine (Internal Medicine) Physician Overview

How Rachel Donaldson, MD, MS fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

Rachel Donaldson, MD, MS's 1,456 claims are above the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in California

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

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Critical Care Medicine (Internal Medicine) Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Rachel Donaldson, MD, MS's specialty?
Rachel Donaldson, MD, MS specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Fresno, California. Credentials: MD, MS.
How much does Rachel Donaldson, MD, MS prescribe under Medicare Part D?
In 2023, Rachel Donaldson, MD, MS wrote 1,456 Medicare Part D claims totaling $1.0M in drug costs for 206 beneficiaries.
Where is Rachel Donaldson, MD, MS located?
Rachel Donaldson, MD, MS is located at 155 N FRESNO ST, Fresno, CA, 93701. Phone: (559) 499-6400.
What is Rachel Donaldson, MD, MS's NPI number?
Rachel Donaldson, MD, MS's National Provider Identifier (NPI) is 1518345289, issued on 05/13/2015.
Does Rachel Donaldson, MD, MS prescribe more brand-name or generic drugs?
Rachel Donaldson, MD, MS's prescribing is 63% brand-name and 37% generic drugs by claim count, with $963K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does Rachel Donaldson, MD, MS prescribe most often?
Based on 2023 Medicare Part D data, Rachel Donaldson, MD, MS's most frequently prescribed drugs include Albuterol Sulfate Hfa, Spiriva Respimat, Wixela Inhub. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rachel Donaldson, MD, MS accept Medicare?
Rachel Donaldson, MD, MS appears in CMS Medicare data with 1,456 Part D claims and 206 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rachel Donaldson, MD, MS's credentials?
Rachel Donaldson, MD, MS's NPI is 1518345289 with credentials MD, MS. 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

Compiled from official public sources by the PlainDoctor editorial team.