John Castillo Asenjo, DO, MS
Family Medicine Physician · Hendersonville, NC
John Castillo Asenjo, DO, MS is a family medicine physician with a practice address in Hendersonville, North Carolina, and NPI 1376046862, issued on Mar 12, 2018. Check the license (North Carolina 2024-00666, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Castillo Asenjo
- Credential
- DO, MS
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 2024-00666 NC
Self-reported in NPPES; status is on the state search - Practice location
- 611 5TH Ave W, Hendersonville, NC 28739
- Phone
- (828) 698-3301
- Enumerated
- Mar 12, 2018
- Record last updated
- Apr 3, 2024
- Fax
- (828) 698-7133
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 4,953 in North Carolina → Look up another NPI →
Also registered at 611 5TH Ave W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Thompson, PA-CPhysician Assistant1124535919
Verify John Castillo Asenjo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2024-00666Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
157 Medicare Part D claims for 44 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril17 claims
- Amlodipine Besylate13 claims
- Atorvastatin Calcium12 claims
- Eliquis11 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.
John Castillo Asenjo among 4,953 family medicine physician records in North Carolina
John Castillo Asenjo, DO, MS is one of 4,953 family medicine physician records with a practice address in North Carolina. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
80 family medicine physician records list a practice address in Hendersonville
They are 80 of the 1,658 NPPES records with a practice address in Hendersonville, and 4,953 family medicine physician records in North Carolina.
All 4,953 in North Carolina → Every provider in Hendersonville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Hannah Bell, FNP-BCHendersonville, NC 287391447873591
- Diana Curran, MDHendersonville, NC 287391316094451
- Sharon Democker, M.D.Hendersonville, NC 287391851472484
- Betsy Merrell, M.D.Hendersonville, NC 287391265475636
- Daniel Veazey, MDHendersonville, NC 287391982640314
- John Watters, D.O.Hendersonville, NC 287391023079845
- John Baker, M.D.Highlands, NC 287411407989353
- John Baumrucker, MDHighlands, NC 287411295710085
Common questions
What is John Castillo Asenjo, DO, MS's NPI number?
John Castillo Asenjo, DO, MS's National Provider Identifier (NPI) is 1376046862, issued on Mar 12, 2018. An NPI identifies a provider in billing; it is not a license.
Where is John Castillo Asenjo, DO, MS located?
The NPPES record lists a practice address at 611 5TH Ave W, Hendersonville, NC, 28739. Phone: (828) 698-3301. Providers update this record themselves, so call before visiting.
How can I verify John Castillo Asenjo, DO, MS's license?
NPPES lists North Carolina license number 2024-00666, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Castillo Asenjo, DO, MS prescribe under Medicare Part D?
In 2024, John Castillo Asenjo, DO, MS had 157 Medicare Part D claims for 44 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.