DUNCAN B JOHNSTONE (MD, PHD) – Internal Medicine Physician, NPI 1225041544

DUNCAN B JOHNSTONE (MD, PHD) is a healthcare provider. based in Liberty, Missouri. specializing in NEPHROLOGY. They hold the professional credentials MD, PHD. They hold a License No. 04-47576 (KS). The NPI Number for DUNCAN B JOHNSTONE (MD, PHD) is 1225041544

Main info

Male
25 Years Of Experience
Accepts Medicare Assignment
Name
DUNCAN B JOHNSTONE (MD, PHD)
NPI
1225041544
Phone
(816) 415-3470
Address
2521 Glenn Hendren Dr Ste 202
Enumeration Date
15 August 2006
Last Update Date
3 April 2026

Doctor Profile

Medical School Name
UNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Secondary Phone
9135881227
Graduation Year
2001 (25 years ago)
PAC ID
4789685827
Group Practice PAC ID
8921911587
Professional Enrollment ID
I20250407001964
Address ID
MO640689625LI2525XDRXX400
Telehealth
Yes

Contacts

Secure Messaging
duncan.b.johnstone@upmcdirect.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience76
Completeness95
Years active:19State licenses:2Other names

319 NEPHROLOGY in MO

Provider Addresses for DUNCAN B JOHNSTONE (MD, PHD)

  • 2521 Glenn Hendren Dr Ste 202

    Liberty, MO 640683388

    Phone: (816) 415-3470

    Type: Location

  • 3901 RAINBOW BLVD

    KANSAS CITY, KS 661605103

    Phone: (913) 588-6074

    Fax: (913) 588-3867

    Type: Location

  • 2450, West Hunting Park Avenue, Tioga, Philadelphia, Philadelphia County, Pennsylvania, 19129, United States

    SUITE 501

    PHILADELPHIA, PA 191291302

    Phone:

    Type: Mailing

  • Temple University Hospital, 3401, North Broad Street, Philadelphia, Philadelphia County, Pennsylvania, 19140, United States

    SUITE 501

    PHILADELPHIA, PA 191405103

    Phone: (215) 707-4600

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2025-04-07

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20230525000281INephrologyKSTBD
I20250407001964INephrologyMOTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes10946$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes6939$0
99291Critical care, first 30-74 minutes5113$0
90960Dialysis services, 4 or more physician visits per month (20 years or older)4538$0
90935Hemodialysis procedure with physician evaluation4017$0
View full utilization report →

Insurance plans in this area (ZIP 64068)

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Provider's Procedures

DUNCAN B JOHNSTONE (MD, PHD) performs procedures in NEPHROLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
NEPHROLOGYPA90935Hemodialysis procedure with one physician evaluation16975

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8921911587View full group profile

Reviews

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Frequently asked questions

What is DUNCAN B JOHNSTONE (MD, PHD)'s NPI number?
DUNCAN B JOHNSTONE (MD, PHD)'s NPI is 1225041544 — the number used across U.S. healthcare to identify this provider.
Is there an active status for DUNCAN B JOHNSTONE (MD, PHD)?
For scheduling context, DUNCAN B JOHNSTONE (MD, PHD) is shown as active in the registry.
What kind of doctor is DUNCAN B JOHNSTONE (MD, PHD)?
DUNCAN B JOHNSTONE (MD, PHD) is associated with Internal Medicine Physician in the directory — Clinical services aligned with this taxonomy classification.
Where in Missouri is DUNCAN B JOHNSTONE (MD, PHD) registered?
Use Liberty, Missouri as the headline location for DUNCAN B JOHNSTONE (MD, PHD) here.
What does 5 location(s) imply?
5 practice locations appear in the available data.