Registry data as of Aug 27, 2026

Valentina Chadwick, NP

Adult Health Nurse Practitioner · Stanford, CA

Valentina Chadwick, NP is an adult health nurse practitioner with a practice address in Stanford, California, and NPI 1629522784, issued on Aug 6, 2016. Check the license (California 95004635, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1629522784
Name
Valentina Chadwick
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
95004635 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 723-4000
Enumerated
Aug 6, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 300 Pasteur Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDDermatology Physician1780675181
  5. Fahim Abbasi, M.D.Advanced Heart Failure and Transplant Cardiology Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Valentina Chadwick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95004635
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

66% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

439 Medicare Part D claims for 81 beneficiaries, against an average of 1,291 among the 16,003 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 234 claims were for opioids.

  1. Valentina Chadwick439
  2. Specialty average1,291

Most prescribed

  1. Oxycodone Hcl81 claims
  2. Gabapentin51 claims
  3. Morphine Sulfate Er30 claims
  4. Mirtazapine28 claims
  5. Oxycodone-Acetaminophen26 claims
  6. Hydrocodone-Acetaminophen21 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 Medicare quality score for 2023: 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.

  1. Qualityout of 100 · 30% of the final score74.3
  2. Costout of 100 · 30%44.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

One hospital or facility affiliation

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

119 adult health nurse practitioner records list a Stanford practice address

They are 119 of the 5,606 NPPES records with a Stanford practice address, and 1,472 adult health nurse practitioner records in California.

Other adult health nurse practitioner records in California

  1. Joel Aandahl, NPVallejo, CA1891423653
  2. Maria Katrina Abad, AGPCNP-BCSan Carlos, CA1306394952
  3. Corey Abbott, N.P.Claremont, CA1457766107
  4. Michael Abney, FNPPleasanton, CA1336336833
  5. Ilona Abramova, NPWest Hills, CA1588066179
  6. Angela Acfalle, NP CNSLa Jolla, CA1013983857
  7. Mary Ackerman, NPRichmond, CA1154406155
  8. Marie Acorda Reece, NPLos Angeles, CA1528331485
  9. Yendry Acosta, APRNSan Diego, CA1396255121
  10. Judith Adams, C-ANPSanta Clarita, CA1831109297

Common questions

What is Valentina Chadwick, NP's NPI number?

Valentina Chadwick, NP's National Provider Identifier (NPI) is 1629522784, issued on Aug 6, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Valentina Chadwick, NP located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Valentina Chadwick, NP's license?

NPPES lists California license number 95004635, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Valentina Chadwick, NP prescribe under Medicare Part D?

In 2024, Valentina Chadwick, NP had 439 Medicare Part D claims for 81 beneficiaries; the average among adult health nurse practitioner prescribers was 1,291. Part D covers Medicare prescriptions only.

What is Valentina Chadwick, NP's Medicare quality 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), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.