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AARON HARRIES
NPI 1437468824
Emergency Medicine in San Francisco, CA

Active since October 02, 2010PECOS Enrolled
91.85/100
CMS Quality Rating
1001 POTRERO AVE BLDG 25, SAN FRANCISCO, CA 94110(415) 206-5753(415) 206-5818 Get Directions Write a Review

NPPES record last updated: September 5, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 5, 2024, Jul 29, 2024, Jul 18, 2024 (3 updates tracked since 2024).

About Aaron Harries NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

AARON HARRIES (NPI 1437468824) is an individual emergency medicine provider in San Francisco, California, licensed in California (A110929) and active in the NPI registry since October 2010. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1437468824
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameAARON HARRIES
Location Address1001 POTRERO AVE BLDG 25San Francisco, CA 94110-3518
Mailing Address1001 Potrero AveSan Francisco, CA 94110-3518 · (949) 278-1136
Phone(415) 206-5753
Fax(415) 206-5818
Sole ProprietorYes
Enumeration DateOctober 2, 2010
Last NPPES UpdateSeptember 5, 20243 updates tracked since enumeration
NPPES CertifiedSeptember 5, 2024
✔ NPI 1437468824 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A110929
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1001 POTRERO AVE BLDG 25, San Francisco, CA 94110
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Aaron Harries is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Aaron Harries reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

City & County Of San Francisco
Same address
General Acute Care Hospital
1001 POTRERO AVE, BUILDING 5, WARD 1B
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 1,573 clinicians in this Medicare group
NPI 1083648810 (415) 759-4067
University Of California Sfgh Medical Group
Same address
Family Medicine
1001 POTRERO AVE, BLDG 80 WARD 83 RM 320
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 842 clinicians in this Medicare group
NPI 1174598296 (628) 206-8610

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
70 services66 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
21 services21 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
20 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.85/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality83.53
Promoting Interoperability100
Improvement Activities40
Cost68.01

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DAWN MICHELLE GROSS M.D., PH.D.
Internal Medicine (Hospice and Palliative Medicine)
1001 POTRERO AVE BLDG 25
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8000
LAUREN PHINNEY MD
Internal Medicine
1001 POTRERO AVE BLDG 25
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8000
RAHAEL BORCHERS MD
Internal Medicine
1001 POTRERO AVE BLDG 25
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8000
REBECCA A ABELMAN MD
Internal Medicine
1001 POTRERO AVE BLDG 25
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8000
DR. MAXWELL LOUIS BIRGER MD
Internal Medicine
1001 POTRERO AVE BLDG 25
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8000
ANDREA QUINONES-RIVERA
Emergency Medicine
1001 POTRERO AVE BLDG 25
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-5753
TRIVENI B DEFRIES M.D, MPH
Internal Medicine
1001 POTRERO AVE BLDG 25
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8000
KRISTEN BASCOMBE MD
Emergency Medicine
1001 POTRERO AVE BLDG 25
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-5753

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Aaron Harries's NPI number?

The NPI number for Aaron Harries is 1437468824. It was assigned to this individual provider in the NPPES registry on October 2, 2010.

Where is Aaron Harries located?

Aaron Harries practices at 1001 Potrero Ave Bldg 25, San Francisco, CA 94110. The listed phone number is (415) 206-5753.

What is Aaron Harries's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Aaron Harries enrolled in Medicare?

Yes. Aaron Harries is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Aaron Harries's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Harries reassigns Medicare benefits to 2 organizations: City & County Of San Francisco (San Francisco, CA) and University Of California Sfgh Medical Group (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Aaron Harries's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Aaron Harries was last updated on September 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.