Helen Ruth Nadel, MD
Nuclear Radiology Physician · Palo Alto, CA
Helen Ruth Nadel, MD is a nuclear radiology physician with a practice address in Palo Alto, California, and NPI 1750877262, issued on Jul 9, 2018. Check the license (California C156733, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Helen Ruth Nadel
- Credential
- MD
- Primary taxonomy
- Nuclear Radiology Physician 2085N0904X
- License number
- C156733 CA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 497-8000
- Enumerated
- Jul 9, 2018
- Record last updated
- Apr 8, 2024
- Medicare enrollment
- Enrolled (PECOS I20180913002138); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 725 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shayda Abadi, NPNurse Practitioner1316745540
- Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
- Alexandra Abbott, MDPediatrics Physician1760018675
- Steven Abboud, MDAnesthesiology Physician1619364908
- Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
- Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235
Verify Helen Ruth Nadel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C156733Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 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: $143.94
1 payment: food and beverage; the largest payer was GE Healthcare. The 88 providers of this specialty with any payment received $10,001.47 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.
2 hospitals and group practices
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
- Lpch Medical Group Div OF LucilePalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Nuclear Radiology Physician providers in California
There are 64 nuclear radiology physician records in California.
Other nuclear radiology physician records in California
- Elma Abella, M.D.Sacramento, CA1548487622
- Sindu Alexander, M.D.Orange, CA1811120371
- David Barank, M.D.Torrance, CA1780769729
- Daniel Calabrese, M.D.Lake Arrowhead, CA1952731747
- Peter Conti, M.D.Los Angeles, CA1689613762
- Erin Cook Grady, MDStanford, CA1396945937
- Benjamin Covington, M.D.Downey, CA1891806311
- Alessandro Dagnolo, MDLos Angeles, CA1205969250
- Guido Davidzon, M.D. M.S.Palo Alto, CA1215238209
- Jeffrey Dobkin, MDSignal Hill, CA1215919147
Common questions
What is Helen Ruth Nadel, MD's NPI number?
Helen Ruth Nadel, MD's National Provider Identifier (NPI) is 1750877262, issued on Jul 9, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Helen Ruth Nadel, MD located?
The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.
How can I verify Helen Ruth Nadel, MD's license?
NPPES lists California license number C156733, 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.
What is Helen Ruth Nadel, MD's MIPS final score?
The 2023 MIPS final score is 76.5 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.