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DR. JOHN CASTILLO ASENJO DO, MS
NPI 1376046862
Family Medicine in Hendersonville, NC

Active since March 12, 2018PECOS Enrolled
611 5TH AVE W, HENDERSONVILLE, NC 28739(828) 698-3301(828) 698-7133 Get Directions Write a Review

NPPES record last updated: April 3, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 3, 2024, Mar 12, 2018 (2 updates tracked since 2018).

About Dr. John Castillo Asenjo Do, Ms NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN CASTILLO ASENJO DO, MS (NPI 1376046862) is an individual family medicine provider in Hendersonville, North Carolina, licensed in North Carolina (2024-00666) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376046862
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. JOHN CASTILLO ASENJOCredential: DO, MS
Location Address611 5TH AVE WHendersonville, NC 28739-4260
Mailing Address9040 Fitzsimmons DrJoint Base Lewis Mcchord, WA 98431-1000 · (253) 968-0369
Phone(828) 698-3301
Fax(828) 698-7133
Sole ProprietorNo
Enumeration DateMarch 12, 2018
Last NPPES UpdateApril 3, 20242 updates tracked since enumeration
NPPES CertifiedApril 3, 2024
✔ NPI 1376046862 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in NC · 2024-00666
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
611 5TH AVE W, Hendersonville, NC 28739
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John Castillo Asenjo Do, Ms is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show John Asenjo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Henderson County Hospital Corporation
Same address
Federally Qualified Health Center (FQHC)
611-B FIFTH AVENUE WEST
Hendersonville, NC 28739
  • Reassigned Medicare billing, North Carolina enrollment
  • 3 clinicians in this Medicare group
NPI 1952030652 (828) 698-3301

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 28739 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.90 typical visit price
range $54.12 – $165.09
Typical copayment $20.97 (range $13.53 – $41.27)
Most-billed visit code 99203
Established Patient
$95.94 typical visit price
range $17.21 – $134.61
Typical copayment $23.98 (range $4.30 – $33.65)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CATHERINE ELLEN THOMPSON PA-C
Physician Assistant
611 5TH AVE W
HENDERSONVILLE, NC 28739
Henderson County (828) 698-3301
QUALITY HEALTHCARE ASSOCIATES
Family Medicine
611 5TH AVE W
HENDERSONVILLE, NC 28739
Henderson County (828) 692-4643
PARDEE FAMILY MEDICINE ASSOCIATES
Family Medicine
611 5TH AVE W
HENDERSONVILLE, NC 28739
Henderson County (828) 698-3301
BETSY SALSBURY MERRELL, M.D., P.L.L.C.
Family Medicine
611 5TH AVE W
HENDERSONVILLE, NC 28739
Henderson County (828) 698-3301

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Asenjo's NPI number?

The NPI number for John Asenjo is 1376046862. It was assigned to this individual provider in the NPPES registry on March 12, 2018.

Where is John Asenjo located?

John Asenjo practices at 611 5th Ave W, Hendersonville, NC 28739. The listed phone number is (828) 698-3301.

What is John Asenjo's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is John Asenjo enrolled in Medicare?

Yes. John Asenjo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for John Asenjo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Asenjo reassigns Medicare benefits to Henderson County Hospital Corporation (Hendersonville, NC). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Asenjo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Asenjo accept?

Health plans from UnitedHealthcare list John Asenjo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Asenjo was last updated on April 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.