Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Kathryn D. Newell, MD

Works at hospitals in Sacramento, CA · California

Summary

Dr. Kathryn D. Newell, MD is an internal medicine doctor at 10850 White Rock Rd, Rancho Cordova, CA 95670. Phone: (530) 533-8500. Accepts Medicare assignment. In 2024, Kathryn D. Newell had 464 Original Medicare patients and 1,020 services. NPI 1003891011. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 10850 White Rock Rd, Rancho Cordova, CA 95670 · Directions (7 more locations)
  • Phone: (530) 533‑8500
  • Medicare: Accepts Medicare assignment
  • Hospital: University of California Davis Medical Center
  • Group practice: Regents of the Univ of Ca
  • Medical school: Columbia University College Of Physicians And Surgeons · graduated 1997 (29 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Kathryn D. Newell, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kathryn D. Newell accept Medicare assignment?
Yes. Medicare's clinician data says Kathryn D. Newell accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kathryn D. Newell see?
In 2024, CMS data shows 464 Original Medicare patients and 1,020 services for Kathryn D. Newell. This counts Original Medicare only and measures volume, not quality.
What is Kathryn D. Newell's NPI number?
1003891011. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kathryn D. Newell, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients464
Services billed to Medicare1,020
Different services or procedures19
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)379 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)280 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)202 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)83 services
  5. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)17 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure74%
  • High cholesterol70%
  • Arthritis48%
  • Diabetes41%
  • Depression32%
  • Chronic kidney disease30%

Hospitals where Kathryn D. Newell works

Medicare's Facility Affiliation Data lists Kathryn D. Newell at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Kathryn D. Newell is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists Kathryn D. Newell as a member of this group (CMS data updated October 2, 2026).

  • Regents of the Univ of Ca1,584 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Rancho Cordova

Clinicians with the same Medicare primary specialty in Rancho Cordova, CA — not a recommendation.

All internal medicine doctors in Rancho Cordova →

Other clinicians in Regents of the Univ of Ca

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolColumbia University College Of Physicians And Surgeons
Graduation year1997 (29 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1003891011
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians