NPPES file of Aug 9, 2026

Melissa Chavez, NP

Primary Care Nurse Practitioner · South San Francisco, CA

Melissa Chavez, NP is a primary care nurse practitioner with a practice address in South San Francisco, California, and NPI 1700444205, issued on May 31, 2019. Check the license (California 1700444205, 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, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700444205
Name
Melissa Chavez
Credential
NP
Primary taxonomy
Primary Care Nurse Practitioner 363LP2300X
License number
1700444205 CA
Self-reported in NPPES; status is on the state search
Practice location
470 Noor Ave, South San Francisco, CA 94080
Phone
(650) 955-7915
Enumerated
May 31, 2019
Record last updated
Oct 21, 2025
Fax
(650) 955-7397
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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Verify Melissa Chavez 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 1700444205
    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
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45% fewer Medicare Part D claims than the average primary care nurse practitioner in 2024

822 Medicare Part D claims for 203 beneficiaries, against an average of 1,492 among the 5,992 providers of this specialty who prescribed in Part D.

  1. Melissa Chavez822
  2. Specialty average1,492

Most prescribed

  1. Diclofenac Sodium113 claims
  2. Albuterol Sulfate Hfa78 claims
  3. Gabapentin34 claims
  4. Omeprazole29 claims
  5. Amlodipine Besylate28 claims
  6. Atorvastatin Calcium21 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.

Melissa Chavez among 1,131 primary care nurse practitioner records in California

Melissa Chavez, NP is one of 1,131 primary care nurse practitioner records with a practice address in California. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 45% of them.

  • NPI issued2019 · 45% of these records are older, 50% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · 35% of these records are
  • Record last updated2025 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP2300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Primary Care Nurse Practitioner providers in California

There are 1,131 primary care nurse practitioner records in California.

The 8 primary care nurse practitioner records with the nearest ZIP codes

  1. Thea Fand-Freeman, N.P.South San Francisco, CA 940801831206499
  2. Valentina Polman, RNSouth San Francisco, CA 940801194442657
  3. Teresa ChanSunnyvale, CA 940861588253447
  4. Francisca Bobb, FNP-BCRedwood City, CA 940651629680673
  5. Dorothea Vakis, RNPRedwood City, CA 940631386743011
  6. Meredith Florian, NP MSNSan Francisco, CA 941021407983497
  7. Mark Freeman, NPSan Francisco, CA 941021710019740
  8. Karen Hill, NPSan Francisco, CA 941021407805765

Common questions

What is Melissa Chavez, NP's NPI number?

Melissa Chavez, NP's National Provider Identifier (NPI) is 1700444205, issued on May 31, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Chavez, NP located?

The NPPES record lists a practice address at 470 Noor Ave, South San Francisco, CA, 94080. Phone: (650) 955-7915. Providers update this record themselves, so call before visiting.

How can I verify Melissa Chavez, NP's license?

NPPES lists California license number 1700444205, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Melissa Chavez, NP prescribe under Medicare Part D?

In 2024, Melissa Chavez, NP had 822 Medicare Part D claims for 203 beneficiaries; the average among primary care nurse practitioner prescribers was 1,492. Part D covers Medicare prescriptions only.

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.