David Brian Karpf, M.D.

Endocrinology, Diabetes & Metabolism

Internal Medicine

David Brian Karpf is an Endocrinology, Diabetes & Metabolism specialist based in Santa Cruz, CA with over 46 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(650) 721-1300Santa Cruz, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

David Brian Karpf, M.D. runs an independent endocrinology, diabetes & metabolism specialist practice in Santa Cruz, CA. A University of California, San Diego School of Medicine graduate since 1980, he brings 46+ years of experience. Endocrinologists treat hormonal and metabolic disorders including diabetes (type 1 and 2), thyroid disease, osteoporosis, and more. CMS MIPS quality score: 76.5/100 (2023).

At a glance

  • Federal MIPS score higher than 30% of MIPS-scored doctors in California
  • Virtual visits available — no app or travel required
1 of 547 Internal Medicine providers in CASee all Internal Medicine in Santa Cruz46+ years experienceNPI since 2006

Older · 759dNPPES updated 2024-04-25 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

120 Harmony Ct, Santa Cruz, CA 95062-3473

Fax: (650) 646-9199
CMS Clinical Data

How Does This Doctor Compare?

MIPS Score

2023

76.5/100

California avg: 78.6 · US avg: 83.6

Lower than most doctors nationally(-7.1 pts)

How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.

Medicare Patients

14

Unique beneficiaries

Boutique practice

Prescription Recipients

15

Patients prescribed

Prescriptions Written

67

Total claims

Total Medicare drug cost: $43k

Percentile rankings compared against 9,360 reporting peers in California.

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.

Industry Payment Transparency

$219 received from industry

3 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 David Brian Karpf's NPI.

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Background & Specialty

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

Career Journey
  1. Graduated medical school · 1980

    University of California, San Diego School of Medicine

  2. Board certified · Apr 24, 2024

    Self-reported via NPPES

  3. 46 years in practice

    Senior practitioner

Endocrinologists treat hormonal and metabolic disorders including diabetes (type 1 and 2), thyroid disease, osteoporosis, adrenal disorders, pituitary conditions, and polycystic ovary syndrome (PCOS).

Taxonomy: 207RE0101X

Education & Training

University of California, San Diego School of Medicine (Class of 1980)

Practice Footprint

Primary hospital affiliation: Acute Care Hospitals

CMS Certification Number: 200034

View hospital on Medicare Care Compare

Virtual Endocrinology, Diabetes & Metabolism Care With David Brian Karpf

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

Schedule a virtual visit with David Brian Karpf for follow-ups, medication reviews, and ongoing care — no travel to Santa Cruz 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 David Brian Karpf

NPI records show Dr. Karpf as active with telehealth listed in Santa Cruz, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (650) 721-1300.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024. See Data Methodology.

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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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