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Internal Medicine

Amy S. Daniher, MD

Works at hospitals in Burlingame, CA · San Francisco, CA · California

Summary

Dr. Amy S. Daniher, MD is an internal medicine doctor at 34 N San Mateo Dr, San Mateo, CA 94401. Phone: (650) 393-5851. Accepts Medicare assignment. In 2024, Amy S. Daniher had 139 Original Medicare patients and 1,473 services. NPI 1831121425. 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: 34 N San Mateo Dr, San Mateo, CA 94401 · Directions (1 more location)
  • Phone: (650) 393‑5851
  • Medicare: Accepts Medicare assignment
  • Hospitals: Peninsula Medical Center, UCSF Medical Center
  • Medical school: University Of Kansas School Of Med (kc/wich/sal) · graduated 1994 (32 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Amy S. Daniher, 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 Amy S. Daniher accept Medicare assignment?
Yes. Medicare's clinician data says Amy S. Daniher 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 Amy S. Daniher see?
In 2024, CMS data shows 139 Original Medicare patients and 1,473 services for Amy S. Daniher. This counts Original Medicare only and measures volume, not quality.
What is Amy S. Daniher's NPI number?
1831121425. 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 Amy S. Daniher, 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 patients139
Services billed to Medicare1,473
Different services or procedures13
Participating Medicare providerYes
Average age of these patients83

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)206 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)160 services
  3. Influenza vaccine split virus, preservative free (90662)35 services
  4. Administration of influenza virus vaccine (G0008)31 services
  5. Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes (99347)28 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%
  • Arthritis50%
  • Osteoporosis37%
  • Diabetes19%
  • Ischemic heart disease19%

Hospitals where Amy S. Daniher works

Medicare's Facility Affiliation Data lists Amy S. Daniher 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.

  • Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007
  • UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050454

Practice locations

Addresses where Amy S. Daniher is enrolled with Medicare (CMS data updated October 2, 2026).

  • 34 N San Mateo DrSan Mateo, CA 94401 (650) 393‑5851
  • 34 N San Mateo Dr, Suite 1San Mateo, CA 94401

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Mateo

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

All internal medicine doctors in San Mateo →

Clinician information

CredentialMD
Medical schoolUniversity Of Kansas School Of Med (kc/wich/sal)
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1831121425
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