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MR. ALEX MACKAY CALDERWOOD PA-C
NPI 1538723937
Physician Assistant in Tacoma, WA

Active since May 01, 2019PECOS EnrolledAccepts Medicare Assignment
1717 S J ST, TACOMA, WA 98405(844) 364-2778(253) 428-8440 Get Directions Write a Review

NPPES record last updated: April 19, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 19, 2021, May 1, 2019 (2 updates tracked since 2019).

About Mr. Alex Mackay Calderwood Pa-c NPPES

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

MR. ALEX MACKAY CALDERWOOD PA-C (NPI 1538723937) is an individual physician assistant in Tacoma, Washington, licensed in Washington (PA61135685) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with St Joseph Medical Center, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1538723937
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. ALEX MACKAY CALDERWOODCredential: PA-C
Location Address1717 S J STTacoma, WA 98405-4933
Mailing Address30 Edwards StNew Haven, CT 06511-3955 · (978) 501-5697
Phone(844) 364-2778
Fax(253) 428-8440
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMay 1, 2019
Last NPPES UpdateApril 19, 20212 updates tracked since enumeration
NPPES CertifiedApril 19, 2021
✔ NPI 1538723937 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in WA · PA61135685✔ Licensed in CT · 23.004437
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X · License 4437 (CT)
1717 S J ST, Tacoma, WA 98405
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

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

Mr. Alex Mackay Calderwood Pa-c 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 ID5799012316
PECOS Enrollment IDI20210331000463
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

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.

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.
35 services25 patients

Hospital Affiliations CMS Care Compare 2

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

St Joseph Medical Center

Acute Care Hospitals · Tacoma, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number500108
Location1717 South J StreetTacoma, WA 98405 · Pierce County
Emergency services Birthing friendly

St Francis Community Hospital

Acute Care Hospitals · Federal Way, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number500141
Location34515 9th Avenue SFederal Way, WA 98003 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98405 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
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
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.

ELIZABETH CULP
Registered Nurse
1717 S J ST
TACOMA, WA 98405
Pierce County (253) 426-6163
GLAUCIA DE CASTRO MOREIRA M.D.
Anesthesiology
1717 S J ST
TACOMA, WA 98405
Pierce County (253) 426-6625
GRANT ALEXANDER YELLIOTT II PA C
Physician Assistant
1717 S J ST
TACOMA, WA 98405
Pierce County (253) 426-6660
MS. JESSICA WAI-YING TAM MD
Internal Medicine
1717 S J ST
TACOMA, WA 98405
Pierce County (253) 426-6341
KARA SPRINGER CRANE PHARMD
Pharmacist
1717 S J ST
TACOMA, WA 98405
Pierce County (253) 432-8216
BROOKE ELIZABETH CLOVER-OWENS RN
Registered Nurse (Obstetric, Inpatient)
1717 S J ST
TACOMA, WA 98405
Pierce County (253) 426-4101
NATHANIEL ERIC SIEV MD
Anesthesiology
1717 S J ST
TACOMA, WA 98405
Pierce County (253) 426-4101
PRISCILLA RUTH JAMES AGACNP-BC
Nurse Practitioner (Gerontology)
1717 S J ST
TACOMA, WA 98405
Pierce County (253) 426-6341

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 Alex Calderwood's NPI number?

The NPI number for Alex Calderwood is 1538723937. It was assigned to this individual provider in the NPPES registry on May 1, 2019.

Where is Alex Calderwood located?

Alex Calderwood practices at 1717 S J St, Tacoma, WA 98405. The listed phone number is (844) 364-2778.

What is Alex Calderwood's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Alex Calderwood enrolled in Medicare?

Yes. Alex Calderwood 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.

What insurance does Alex Calderwood accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Alex Calderwood 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 Alex Calderwood affiliated with any hospitals?

According to CMS data, Alex Calderwood is affiliated with St Joseph Medical Center and St Francis Community Hospital.

When was this NPI record last updated?

The NPPES record for Alex Calderwood was last updated on April 19, 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.