NPPES file of Aug 9, 2026

Ma. Rosel M. Sigua-Chen, NP

Nurse Practitioner · Vallejo, CA

Ma. Rosel M. Sigua-Chen, NP is a nurse practitioner with a practice address in Vallejo, California, and NPI 1780745208, issued on Dec 12, 2006. Check the license (California 15575, 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
1780745208
Name
Ma. Rosel M. Sigua-Chen
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
15575 CA
Self-reported in NPPES; status is on the state search
Practice location
119 Westport LN, Vallejo, CA 94591
Phone
(510) 439-7282
Enumerated
Dec 12, 2006
Record last updated
Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
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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8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →

Verify Ma. Rosel M. Sigua-Chen 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 15575    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

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18% fewer Medicare Part D claims than the average nurse practitioner in 2024

907 Medicare Part D claims for 219 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 53 claims were for opioids.

  1. Ma. Rosel Sigua-Chen907
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium55 claims
  2. Furosemide49 claims
  3. Levothyroxine Sodium36 claims
  4. Omeprazole32 claims
  5. Amlodipine Besylate27 claims
  6. Eliquis27 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.

Ma. Rosel M. Sigua-Chen among 8,223 nurse practitioner records in California

Ma. Rosel M. Sigua-Chen, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 82% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 42% of these records are
  • Record last updated2021 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California.

All 8,223 in California → Every provider in Vallejo → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Dianne AngelesVallejo, CA 945911710701164
  2. Edwina Hanna-Reese, NP, DNPVallejo, CA 945911912996398
  3. Humberto Talmadge, NPVallejo, CA 945911639794639
  4. Mija Berg, NPVallejo, CA 945901225123243
  5. Maricar Inigo, N.P.Vallejo, CA 945901104929165
  6. Ivana Pereira-Ambrose, NPFVallejo, CA 945901356444848
  7. Lois Baeta, N.P.Vallejo, CA 945891760620983
  8. Debbie Diaz, FAMILY NURSE PRACTITVallejo, CA 945891982774774

Common questions

What is Ma. Rosel M. Sigua-Chen, NP's NPI number?

Ma. Rosel M. Sigua-Chen, NP's National Provider Identifier (NPI) is 1780745208, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ma. Rosel M. Sigua-Chen, NP located?

The NPPES record lists a practice address at 119 Westport LN, Vallejo, CA, 94591. Phone: (510) 439-7282. Providers update this record themselves, so call before visiting.

How can I verify Ma. Rosel M. Sigua-Chen, NP's license?

NPPES lists California license number 15575, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Ma. Rosel M. Sigua-Chen, NP prescribe under Medicare Part D?

In 2024, Ma. Rosel M. Sigua-Chen, NP had 907 Medicare Part D claims for 219 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.