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Psychiatry

Jeremy M. Demartini, MD

Works at hospitals in Sacramento, CA · California

Summary

Dr. Jeremy M. Demartini, MD is a psychiatrist at 2000 Stockton Blvd, Suite 2300, Sacramento, CA 95817. Phone: (916) 734-3574. Accepts Medicare assignment. In 2024, Jeremy M. Demartini had 42 Original Medicare patients and 120 services. NPI 1669715512. 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: Psychiatrist (Medicare lists Psychiatry)
  • Address: 2000 Stockton Blvd, Suite 2300, Sacramento, CA 95817 · Directions (1 more location)
  • Phone: (916) 734‑3574
  • Medicare: Accepts Medicare assignment
  • Hospital: University of California Davis Medical Center
  • Group practice: Regents of the Univ of Ca (+1 more)
  • Medical school: University Of California, Geffen School Of Medicine · graduated 2013 (13 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Jeremy M. Demartini, 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 Jeremy M. Demartini accept Medicare assignment?
Yes. Medicare's clinician data says Jeremy M. Demartini 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 Jeremy M. Demartini see?
In 2024, CMS data shows 42 Original Medicare patients and 120 services for Jeremy M. Demartini. This counts Original Medicare only and measures volume, not quality.
What is Jeremy M. Demartini's NPI number?
1669715512. 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 Jeremy M. Demartini, 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 patients42
Services billed to Medicare120
Different services or procedures8
Participating Medicare providerYes
Average age of these patients65

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)43 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)34 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)17 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)16 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).

  • Depression75%
  • Anxiety75%
  • High blood pressure74%
  • High cholesterol60%
  • Arthritis52%
  • Diabetes33%

Hospitals where Jeremy M. Demartini works

Medicare's Facility Affiliation Data lists Jeremy M. Demartini 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 Jeremy M. Demartini is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jeremy M. Demartini as a member of these groups (CMS data updated October 2, 2026).

  • Regents of the Univ of Ca1,584 clinicians in the group
  • Regents of the University of California567 clinicians in the group

Specialties

Find other Psychiatry doctors in California →

Other psychiatrists in Sacramento

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

All psychiatrists in Sacramento →

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 schoolUniversity Of California, Geffen School Of Medicine
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1669715512
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