Chelsea Marie Masters, FNP-C
Family Nurse Practitioner · Saint Louis, MO
Chelsea Marie Masters, FNP-C is a family nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1639544737, issued on Dec 1, 2015. Check the license (Missouri 2015013120, as entered in NPPES) with the Missouri board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Chelsea Marie Masters
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 2015013120 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4400 Clayton Ave, Saint Louis, MO 63110
- Phone
- (314) 432-3600
- Enumerated
- Dec 1, 2015
- Record last updated
- Dec 1, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 4400 Clayton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Chelsea Nagel, PT, DPT, ATCPhysical Therapist1457977480
- Amanda O'Connor, CPNP-PCPediatric Nurse Practitioner1063899441
Verify Chelsea Marie Masters in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2015013120Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
714 family nurse practitioner records list a practice address in Saint Louis
They are 714 of the 27,605 NPPES records with a practice address in Saint Louis, and 5,226 family nurse practitioner records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 714 in Saint Louis → All 5,226 in Missouri → Every provider in Saint Louis →
Other family nurse practitioner records in Missouri
- Sara Abben, APRNGrandview, MO1760105274
- Andrea Abbott, FNP-CChesterfield, MO1588003842
- Dana Abdel Jawad, DNP, APRN, FNP-CKansas City, MO1245185974
- Zara Abdush-Shakir Bever, FNPKansas City, MO1265283923
- Patricia Abele, NPChesterfield, MO1265418057
- Abisola AbimbolaSaint Louis, MO1083440457
- Melissa Abramovitz, FNP-BCKansas City, MO1679170005
- Ana Abrudan-Danalache, FNPWillard, MO1053035394
- Karen Abt, FNPCape Girardeau, MO1144672577
- Nadeen AbusalimKansas City, MO1437030954
Common questions
What is Chelsea Marie Masters, FNP-C's NPI number?
Chelsea Marie Masters, FNP-C's National Provider Identifier (NPI) is 1639544737, issued on Dec 1, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Chelsea Marie Masters, FNP-C located?
The NPPES record lists a practice address at 4400 Clayton Ave, Saint Louis, MO, 63110. Phone: (314) 432-3600. Providers update this record themselves, so call before visiting.
How can I verify Chelsea Marie Masters, FNP-C's license?
NPPES lists Missouri license number 2015013120, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity 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. 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.