Donald Lloyd Whisler, M.D.

Rheumatology Internal Medicine

Donald Lloyd Whisler is a Rheumatology Internal Medicine specialist based in Santa Rosa, CA with over 13 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: INTERNAL MEDICINE

(707) 890-4250Santa Rosa, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Donald Lloyd Whisler, M.D. specializes in internal medicine, serving patients in Santa Rosa, CA in group practice. He has been practicing since 2013 — over 13 years. He regularly sees Medicare patients with arthritis, hypertension, and high cholesterol (per CMS claims data).

1 of 418 Internal Medicine providers in CASee all Internal Medicine in Santa Rosa13+ years experienceNPI since 2013

Older · 1655dNPPES updated 2021-11-11 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

1162 Montgomery Dr Ste 3, Santa Rosa, CA 95405-4802

Fax: (707) 476-2238
CMS Clinical Data

How Does This Doctor Compare?

Medicare Patients

454

Unique beneficiaries

Standard volume

Prescription Recipients

417

Patients prescribed

Prescriptions Written

2,054

Total claims

Total Medicare drug cost: $1.94M

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Arthritis, Hypertension, and High Cholesterol.

Arthritis
75%

Joint inflammation causing pain, swelling, and stiffness

Hypertension
67%

High blood pressure — a leading risk factor for heart disease and stroke

High Cholesterol
67%

Elevated cholesterol or triglycerides that increase heart disease risk

Osteoporosis
28%

Weakened bones that are more prone to fractures, common in older adults

Anxiety Disorders
27%

Excessive worry or fear that interferes with daily life

Mood Disorders
27%

Conditions affecting emotional state, including depression and bipolar disorder

Depression
24%

A mood disorder causing persistent sadness and loss of interest in activities

Ischemic Heart Disease
20%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Industry Payment Transparency

$145 received from industry

8 transactions reported in 2024 ·Low tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Donald Lloyd Whisler's NPI.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Board certified · Nov 10, 2021

    Self-reported via NPPES

  2. 13 years in practice

    Established

Internal MedicineAllopathic & Osteopathic Physicians

Rheumatologists treat autoimmune and inflammatory conditions including rheumatoid arthritis, lupus, psoriatic arthritis, gout, osteoarthritis, and vasculitis. They manage biologic therapies and joint-preserving treatments.

Taxonomy: 207RR0500X

Practice Footprint

Primary hospital affiliation: Psychiatric

CMS Certification Number: 184012

View hospital on Medicare Care Compare

Virtual Internal Medicine Care With Donald Lloyd Whisler

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Donald Lloyd Whisler for arthritis follow-ups, blood pressure monitoring, cholesterol management — no travel to Santa Rosa required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Donald Lloyd Whisler

Dr. Whisler is listed as active in the NPI registry with telehealth listed in Santa Rosa, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (707) 890-4250.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.

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Claim Profile

Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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