Nancy Sue Harris, MD
Internal Medicine Physician · Moss Beach, CA
Nancy Sue Harris, MD is an internal medicine physician with a practice address in Moss Beach, California, and NPI 1144643420, issued on Jan 22, 2014. Check the license (California G53569, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nancy Sue Harris
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G53569 CA
Self-reported in NPPES; status is on the state search - Practice location
- 98 San Lucas Ave, Moss Beach, CA 94038
- Phone
- (650) 440-9121
- Enumerated
- Jan 22, 2014
- Record last updated
- Jan 22, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (650) 712-8792
- Medicare enrollment
- Enrolled (PECOS I20160607002464); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Nancy Sue Harris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G53569Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
278 Medicare Part D claims for 103 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Albuterol Sulfate Hfa22 claims
- Atenolol21 claims
- Levetiracetam18 claims
- Ibuprofen17 claims
- Cephalexin15 claims
- Gabapentin11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $35.99
2 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- County OF Santa ClaraSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy Sue Harris among 17,696 internal medicine physician records in California
Nancy Sue Harris, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1983 · median 2004 among the 11,065 with a school on file
- Record last updated2014 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 internal medicine physician record lists a practice address in Moss Beach
They are 1 of the 20 NPPES records with a practice address in Moss Beach, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Moss Beach → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ravin Agah, M.D.Mountain View, CA 940401528075017
- Galina Balon, MDMountain View, CA 940401114932571
- Barbara Campbell, M.D.Mountain View, CA 940401679597405
- Dean Cummings, MDMountain View, CA 940401265454029
- Vivien D'Andrea, MDMountain View, CA 940401760497135
- Francis Garrett, MDMountain View, CA 940401295799724
- David Kaufman, MDMountain View, CA 940401720013782
- Shuichi Kobayashi, M.D.Mountain View, CA 940401871509752
Common questions
What is Nancy Sue Harris, MD's NPI number?
Nancy Sue Harris, MD's National Provider Identifier (NPI) is 1144643420, issued on Jan 22, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Nancy Sue Harris, MD located?
The NPPES record lists a practice address at 98 San Lucas Ave, Moss Beach, CA, 94038. Phone: (650) 440-9121. Providers update this record themselves, so call before visiting.
How can I verify Nancy Sue Harris, MD's license?
NPPES lists California license number G53569, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nancy Sue Harris, MD prescribe under Medicare Part D?
In 2024, Nancy Sue Harris, MD had 278 Medicare Part D claims for 103 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Nancy Sue Harris, MD's MIPS final score?
The 2023 MIPS final score is 83.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.