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Family Practice

Daryl Nounnan, MD

Sees patients in Santa Cruz, CA · Freedom, CA · Santa Cruez, CA … · California

Summary

Dr. Daryl Nounnan, MD is a family doctor at 1301 Mission St, Santa Cruz, CA 95060. Phone: (831) 458-6300. Accepts Medicare assignment. In 2024, Daryl Nounnan had 535 Original Medicare patients and 781 services. NPI 1134109671. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 1301 Mission St, Santa Cruz, CA 95060 · Directions (4 more locations)
  • Phone: (831) 458‑6300
  • Medicare: Accepts Medicare assignment
  • Group practice: Sutter Bay Medical Foundation
  • Medical school: University Of California, Davis School Of Medicine · graduated 1995 (31 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Daryl Nounnan, 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 Daryl Nounnan accept Medicare assignment?
Yes. Medicare's clinician data says Daryl Nounnan 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 Daryl Nounnan see?
In 2024, CMS data shows 535 Original Medicare patients and 781 services for Daryl Nounnan. This counts Original Medicare only and measures volume, not quality.
What is Daryl Nounnan's NPI number?
1134109671. 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 Daryl Nounnan, 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 patients535
Services billed to Medicare781
Different services or procedures39
Participating Medicare providerYes
Average age of these patients75

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)419 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)93 services
  3. Automated urinalysis test (81003)75 services
  4. Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus (87637)22 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)19 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 cholesterol67%
  • High blood pressure61%
  • Arthritis46%
  • Osteoporosis23%
  • Atrial fibrillation20%
  • Diabetes19%

Practice locations

Addresses where Daryl Nounnan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Daryl Nounnan as a member of this group (CMS data updated October 2, 2026).

  • Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in Santa Cruz

Clinicians with the same Medicare primary specialty in Santa Cruz, CA — not a recommendation.

All family doctors in Santa Cruz →

Other clinicians in Sutter Bay Medical Foundation

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, Davis School Of Medicine
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134109671
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians