Gretchen Elizabeth Castleman, FNP, ENP
Nurse Practitioner · Nashville, TN
Gretchen Elizabeth Castleman, FNP, ENP is a nurse practitioner with a practice address in Nashville, Tennessee, and NPI 1154055036, issued on Jul 15, 2022. Check the license (Tennessee 31263, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gretchen Elizabeth Castleman
- Credential
- FNP, ENP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 31263 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1818 Albion St, Nashville, TN 37208
- Phone
- (615) 341-4000
- Enumerated
- Jul 15, 2022
- Record last updated
- Apr 21, 2023
- Medicare enrollment
- Enrolled (PECOS I20221005000433); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 2,303 in Tennessee → Look up another NPI →
Also registered at 1818 Albion St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gretchen Elizabeth Castleman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 31263Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average nurse practitioner in 2024
97 Medicare Part D claims for 64 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $15.40
1 payment: food and beverage; the largest payer was Pfizer Inc. The 38,884 providers of this specialty with any payment received $791.64 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.
Bills Medicare through one group practice
- Southeastern Emergency Physicians LLCNashville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gretchen Elizabeth Castleman among 2,303 nurse practitioner records in Tennessee
Gretchen Elizabeth Castleman, FNP, ENP is one of 2,303 nurse practitioner records with a practice address in Tennessee. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 80% of them.
- NPI issued2022 · 80% of these records are older, 16% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · median 2017 among the 1,331 with a school on file
- Record last updated2023 · 49% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
328 nurse practitioner records list a practice address in Nashville
They are 328 of the 24,357 NPPES records with a practice address in Nashville, and 2,303 nurse practitioner records in Tennessee.
All 2,303 in Tennessee → Every provider in Nashville → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Adrienne Hicks, FNPNashville, TN 372081457424475
- Christie Kirkpatrick, FNPNashville, TN 372081508812603
- Nancy Anness, APNNashville, TN 372091093757197
- Meghan Barrett, FNPNashville, TN 372071982392619
- Eterial Burrell, R.N., W.H.N.P.- B.C.Nashville, TN 372091215350665
- Lesleigh Burton, FNPNashville, TN 372091417367335
- Sabrina Cook, ANP-BCNashville, TN 372091821392499
- Brooke Faught, NPNashville, TN 372091255316238
Common questions
What is Gretchen Elizabeth Castleman, FNP, ENP's NPI number?
Gretchen Elizabeth Castleman, FNP, ENP's National Provider Identifier (NPI) is 1154055036, issued on Jul 15, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Gretchen Elizabeth Castleman, FNP, ENP located?
The NPPES record lists a practice address at 1818 Albion St, Nashville, TN, 37208. Phone: (615) 341-4000. Providers update this record themselves, so call before visiting.
How can I verify Gretchen Elizabeth Castleman, FNP, ENP's license?
NPPES lists Tennessee license number 31263, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Gretchen Elizabeth Castleman, FNP, ENP prescribe under Medicare Part D?
In 2024, Gretchen Elizabeth Castleman, FNP, ENP had 97 Medicare Part D claims for 64 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.
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.