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DR. ALEXANDER MICHAEL JOHNSTON M.D.
NPI 1356785604
Surgery in Winchester, VA

Active since April 17, 2013PECOS EnrolledAccepts Medicare Assignment
190 CAMPUS BLVD STE 310, WINCHESTER, VA 22601(540) 536-0130(540) 536-0140 Get Directions Write a Review

NPPES record last updated: June 10, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 10, 2021, Mar 6, 2021, Aug 7, 2019 (3 updates tracked since 2019).

About Dr. Alexander Michael Johnston M.d. NPPES

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

DR. ALEXANDER MICHAEL JOHNSTON M.D. (NPI 1356785604) is an individual surgery provider in Winchester, Virginia, licensed in Virginia (0101266985) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Our Lady Of Lourdes Memorial Hospital, Inc, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1356785604
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. ALEXANDER MICHAEL JOHNSTONCredential: M.D.
Location Address190 CAMPUS BLVD STE 310Winchester, VA 22601-2872
Mailing Address220 Campus Blvd Ste 100Winchester, VA 22601-2896 · (540) 536-5100 · Fax (540) 536-0235
Phone(540) 536-0130
Fax(540) 536-0140
Sole ProprietorYes
Medical School CMSOtherGraduated 2013
Enumeration DateApril 17, 2013
Last NPPES UpdateJune 10, 20213 updates tracked since enumeration
NPPES CertifiedJune 10, 2021
✔ NPI 1356785604 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in VA · 0101266985
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
190 CAMPUS BLVD STE 310, Winchester, VA 22601
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11 Guthrie Square, Guthrie/Robert Packer Hospital,Sayre, PA 18840 · Phone (570) 887-3585
Location 21840 Amherst StWinchester, VA 22601-2808 · Phone (540) 536-8000 · Fax (540) 536-0235

Other Identifiers 1

Other0101266985VA · State License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Alexander Michael Johnston M.d. 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 ID6800185232
PECOS Enrollment IDI20211012002954, I20220801000173
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 Reassignments

3

Medicare enrollment records show Alexander Johnston reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Valley Physician Enterprise, Inc.
Same address
Ophthalmology
190 CAMPUS BLVD STE 210
Winchester, VA 22601
  • Reassigned Medicare billing, Virginia enrollment
  • 386 clinicians in this Medicare group
NPI 1053800961 (540) 536-5820
Winchester Medical Center
Same address
Pulmonary Disease
190 CAMPUS BLVD STE 201
Winchester, VA 22601
  • Reassigned Medicare billing, Virginia enrollment
  • 756 clinicians in this Medicare group
NPI 1336951581 (540) 536-5980
Guthrie Medical Group, P.C.
182 mi
Family Medicine
110 PLAZA LN
Wellsboro, PA 16901
  • Reassigned Medicare billing, Pennsylvania and New York enrollments
  • Medicare enrollment name: Guthrie Medical Group PC
  • Also billed through NPI 1245246644 (New York)
  • 830 clinicians in this Medicare group
NPI 1952350167 (570) 724-4241

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

Areas of Expertise CMS Part B claims 7

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 straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
61 services47 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
54 services53 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
24 services22 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
19 services12 patients
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.
17 services13 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
15 services15 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Our Lady Of Lourdes Memorial Hospital, Inc

Acute Care Hospitals · Binghamton, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330011
Location169 Riverside DriveBinghamton, NY 13905 · Broome County
Emergency services Birthing friendly

Corning Hospital

Acute Care Hospitals · Corning, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330277
Location1 Guthrie DriveCorning, NY 14830 · Steuben County
Emergency services Birthing friendly

Cayuga Medical Center At Ithaca

Acute Care Hospitals · Ithaca, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330307
Location101 Dates DriveIthaca, NY 14850 · Tompkins County
Emergency services Birthing friendly

Robert Packer Hospital

Acute Care Hospitals · Sayre, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390079
LocationOne Guthrie SquareSayre, PA 18840 · Bradford County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22601 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
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
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 20

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

MATELIN PAUL CROSEN M.D.
Surgery (Surgical Critical Care)
190 CAMPUS BLVD STE 310
WINCHESTER, VA 22601
Winchester City (540) 536-0130
HEATHER ANN GILBERT CRNP
Nurse Practitioner (Family)
190 CAMPUS BLVD STE 310
WINCHESTER, VA 22601
Winchester City (540) 536-0130
DR. ERIN ANDREWS MD
Surgery
190 CAMPUS BLVD STE 310
WINCHESTER, VA 22601
Winchester City (540) 536-0130
VICTORIA JANSON ROHRER
Physician Assistant
190 CAMPUS BLVD STE 310
WINCHESTER, VA 22601
Winchester City (540) 536-0130
MR. CHRISTOPHER LEE WHATLEY ACNPC-AG
Nurse Practitioner (Critical Care Medicine)
190 CAMPUS BLVD STE 310
WINCHESTER, VA 22601
Winchester City (540) 536-0130
MS. CARA GWENDOLYN BLAND NP
Nurse Practitioner
190 CAMPUS BLVD STE 310
WINCHESTER, VA 22601
Winchester City (540) 536-0130
LORETTA A BOYD MD
Surgery
190 CAMPUS BLVD STE 310
WINCHESTER, VA 22601
Winchester City (540) 536-0130
AMANDA M PRATER PA
Physician Assistant (Surgical)
190 CAMPUS BLVD STE 310
WINCHESTER, VA 22601
Winchester City (540) 536-0130

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 Alexander Johnston's NPI number?

The NPI number for Alexander Johnston is 1356785604. It was assigned to this individual provider in the NPPES registry on April 17, 2013.

Where is Alexander Johnston located?

Alexander Johnston practices at 190 Campus Blvd Ste 310, Winchester, VA 22601. The listed phone number is (540) 536-0130.

What is Alexander Johnston's specialty?

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

Is Alexander Johnston enrolled in Medicare?

Yes. Alexander Johnston 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.

Which organizations bill Medicare for Alexander Johnston's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Johnston reassigns Medicare benefits to 3 organizations: Valley Physician Enterprise, Inc. (Winchester, VA), Winchester Medical Center (Winchester, VA) and Guthrie Medical Group, P.C. (Wellsboro, PA). Each 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 Alexander Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexander Johnston accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Alexander Johnston 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.

Is Alexander Johnston affiliated with any hospitals?

According to CMS data, Alexander Johnston is affiliated with Our Lady Of Lourdes Memorial Hospital, Inc, Corning Hospital, Cayuga Medical Center At Ithaca and Robert Packer Hospital.

When was this NPI record last updated?

The NPPES record for Alexander Johnston was last updated on June 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.