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DR. NANCY SUE HARRIS MD
NPI 1144643420
Internal Medicine in Moss Beach, CA

Active since January 22, 2014PECOS EnrolledAccepts Medicare Assignment
83.56/100
CMS Quality Rating
98 SAN LUCAS AVE, MOSS BEACH, CA 94038(650) 440-9121(650) 712-8792 Get Directions Write a Review

NPPES record last updated: January 22, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Nancy Sue Harris Md NPPES

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

DR. NANCY SUE HARRIS MD (NPI 1144643420) is an individual internal medicine provider in Moss Beach, California, licensed in California (G53569) and active in the NPI registry since January 2014. She is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (1983).

NPPES Registry Identity

NPI1144643420
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. NANCY SUE HARRISCredential: MD
Location Address98 SAN LUCAS AVEMoss Beach, CA 94038-9749
Mailing Address98 San Lucas AveMoss Beach, CA 94038-9749 · (650) 440-9121 · Fax (650) 712-8792
Phone(650) 440-9121
Fax(650) 712-8792
Sole ProprietorYes
Medical School CMSStanford University School Of MedicineGraduated 1983
Enumeration DateJanuary 22, 2014
✔ NPI 1144643420 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G53569
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
98 SAN LUCAS AVE, Moss Beach, CA 94038
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Nancy Sue Harris Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5092005801
PECOS Enrollment IDI20160607002464
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 Nancy Harris reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of Santa Clara
21 mi
Mental Health (Including Community Mental Health Center)
231 GRANT AVENUE
Palo Alto, CA 94306
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1588721500 (California), NPI 1629301346 (California)
  • 2,460 clinicians in this Medicare group
NPI 1144330614 (650) 321-5545
El Camino Health Medical Network, LLC
34 mi
Multi-Specialty
828 S WINCHESTER BLVD
San Jose, CA 95128
  • Reassigned Medicare billing, California enrollment
  • 314 clinicians in this Medicare group
NPI 1164880761 (408) 871-3400

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94038 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
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.

83.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality83.75
Promoting Interoperability100
Improvement Activities40
Cost61.45

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 Nancy Harris's NPI number?

The NPI number for Nancy Harris is 1144643420. It was assigned to this individual provider in the NPPES registry on January 22, 2014.

Where is Nancy Harris located?

Nancy Harris practices at 98 San Lucas Ave, Moss Beach, CA 94038. The listed phone number is (650) 440-9121.

What is Nancy Harris's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Nancy Harris enrolled in Medicare?

Yes. Nancy Harris is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Nancy Harris's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Harris reassigns Medicare benefits to 2 organizations: County Of Santa Clara (Palo Alto, CA) and El Camino Health Medical Network, LLC (San Jose, 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 Nancy Harris'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 Nancy Harris was last updated on January 22, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.