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PROF. ASHTON CHRISTIAN MD
NPI 1699207704
Surgery in Mission Viejo, CA

Active since March 29, 2017PECOS EnrolledAccepts Medicare Assignment
27799 MEDICAL CENTER RD STE 440, MISSION VIEJO, CA 92691(493) 641-0079(949) 364-0317 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 11, 2024, Mar 29, 2017 (2 updates tracked since 2017).

About Prof. Ashton Christian Md NPPES

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

PROF. ASHTON CHRISTIAN MD (NPI 1699207704) is an individual surgery provider in Mission Viejo, California, licensed in California (A157097) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1699207704
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NamePROF. ASHTON CHRISTIANCredential: MD
Location Address27799 MEDICAL CENTER RD STE 440Mission Viejo, CA 92691-6400
Mailing Address27799 Medical Center Rd Ste 440Mission Viejo, CA 92691-6400 · (949) 364-1007 · Fax (949) 364-0317
Phone(493) 641-0079
Fax(949) 364-0317
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMarch 29, 2017
Last NPPES UpdateFebruary 9, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 9, 2026
✔ NPI 1699207704 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A157097
Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
27799 MEDICAL CENTER RD STE 440, Mission Viejo, CA 92691
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Prof. Ashton Christian Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1557695905
PECOS Enrollment IDI20240731004316
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
26 services13 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
13 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92691 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
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.

DR. ELLIOT SILVER M.D.
Surgery
27799 MEDICAL CENTER RD STE 440
MISSION VIEJO, CA 92691
Orange County (949) 364-1007
MARLA R. ANDERSON MD
Surgery
27799 MEDICAL CENTER RD STE 440
MISSION VIEJO, CA 92691
Orange County (949) 364-1007
PETER SUNGJIN PAK M.D.
Surgery (Trauma Surgery)
27799 MEDICAL CENTER RD STE 440
MISSION VIEJO, CA 92691
Orange County (949) 364-1007
ALISON FORBES NP
Nurse Practitioner (Acute Care)
27799 MEDICAL CENTER RD STE 440
MISSION VIEJO, CA 92691
Orange County (949) 364-1007

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 Ashton Christian's NPI number?

The NPI number for Ashton Christian is 1699207704. It was assigned to this individual provider in the NPPES registry on March 29, 2017.

Where is Ashton Christian located?

Ashton Christian practices at 27799 Medical Center Rd Ste 440, Mission Viejo, CA 92691. The listed phone number is (493) 641-0079.

What is Ashton Christian's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Ashton Christian enrolled in Medicare?

Yes. Ashton Christian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Ashton Christian was last updated on February 9, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.