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Emergency Medicine

Christine M. Black, MD

Works at hospitals in Mountain View, CA · California

Summary

Dr. Christine M. Black, MD is an emergency medicine doctor at 2500 Grant Rd, Mountain View, CA 94040. Phone: (650) 940-7000. Accepts Medicare assignment. In 2024, Christine M. Black had 576 Original Medicare patients and 848 services. NPI 1881222792. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 2500 Grant Rd, Mountain View, CA 94040 · Directions (1 more location)
  • Phone: (650) 940‑7000
  • Medicare: Accepts Medicare assignment
  • Hospital: El Camino Health
  • Group practice: Cep America - California
  • Medical school: Medical College Of Wisconsin · graduated 2020 (6 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Christine M. Black, 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 Christine M. Black accept Medicare assignment?
Yes. Medicare's clinician data says Christine M. Black 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 Christine M. Black see?
In 2024, CMS data shows 576 Original Medicare patients and 848 services for Christine M. Black. This counts Original Medicare only and measures volume, not quality.
What is Christine M. Black's NPI number?
1881222792. 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 Christine M. Black, 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 patients576
Services billed to Medicare848
Different services or procedures62
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)346 services
  2. Critical care, first 30-74 minutes (99291)130 services
  3. Emergency department visit with moderate level of medical decision making (99284)116 services
  4. Ultrasound scan of chest (76604)48 services
  5. Ultrasound of heart, follow-up (93308)45 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 pressure75%
  • High cholesterol75%
  • Arthritis49%
  • Chronic kidney disease38%
  • Ischemic heart disease37%
  • Diabetes35%

Hospitals where Christine M. Black works

Medicare's Facility Affiliation Data lists Christine M. Black 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.

  • El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308

Practice locations

Addresses where Christine M. Black is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Christine M. Black as a member of this group (CMS data updated October 2, 2026).

  • Cep America - California1,292 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Mountain View

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

All emergency medicine doctors in Mountain View →

Other clinicians in Cep America - California

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

Clinician information

CredentialMD
Medical schoolMedical College Of Wisconsin
Graduation year2020 (6 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881222792
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