Marianne Stewart Johnston, PA-C

  • Bellevue, WA
  • Physician assistant
NPI1871724658PAC ID6305984592
Medicare patients, 2024
39
Part D claims, 2024
2,839
Hospital affiliations
1
Industry payments
$170
Medical groups
3
Practice address
11120 Ne 33rd Pl, Bellevue, WA 98004
Practice phone
Call (425) 226-7500
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Talbot Center for Rehabilitation and Healthcare

Bellevue, Washington

See all 8 affiliations

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Marianne Stewart Johnston is a physician assistant in Bellevue, Washington

Marianne Johnston practices at Talbot Center for Rehabilitation and Healthcare in Bellevue, Washington.

Marianne Johnston's NPI, 1871724658, was assigned on July 28, 2009. Marianne Johnston holds Washington license PA 60105502.

NPI and contact details
Medicare PAC ID
6305984592
NPI enumeration date
July 28, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(425) 226-7500
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
47
Medical school graduation
2005

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Marianne Stewart Johnston practices at Talbot Center for Rehabilitation and Healthcare in Bellevue, Washington

Marianne Johnston's primary practice is Talbot Center for Rehabilitation and Healthcare, at 11120 Ne 33rd Pl, Bellevue, WA 98004 in King County. The practice phone is (425) 226-7500.

  • Talbot Center for Rehabilitation and Healthcare
    11120 Ne 33rd Pl, Bellevue, WA 98004 · King CountyPhone(425) 226-7500

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Marianne Stewart Johnston is affiliated with 5 sites of care and 3 medical groups

Marianne Johnston's primary practice is Talbot Center for Rehabilitation and Healthcare in Bellevue, Washington. Marianne Johnston is also affiliated with Valley Medical Center. The medical group on file is Select Rehabilitation. Dmand AI also links Marianne Johnston to 3 more group practices and clinics and 2 medical groups, each named with a free account.

See all 8 affiliations for Marianne Johnston

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Marianne Stewart Johnston's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Marianne Johnston practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Talbot Center for Rehabilitation and HealthcareAvailable with a free account
+4 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Marianne Stewart Johnston is one of 3,005 physician assistants in Washington

Physician assistant is Marianne Johnston's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marianne Johnston is licensed in Washington.

Specialties and state licenses

  • Physician assistant, WashingtonPrimaryLicense PA 60105502 · taxonomy 363A00000X

Physician assistants near Marianne Johnston

Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Marianne Stewart Johnston treated 39 Medicare patients in 2024, average age 76

CMS counts 39 Medicare patients who saw Marianne Johnston in 2024. The largest group is 65 to 74, with 16 patients. 74% of them have high blood pressure, and 69% have high cholesterol. Their average risk score is 1.50, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Marianne Johnston's median patient age at 67, with 64% women.

Medicare patients, 202439
Average age76
Average risk score1.50

Marianne Johnston's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Marianne Johnston's Medicare patients by sex, 2024

  • Women2462%
  • Men1538%

Chronic conditions among Marianne Johnston's Medicare patients, 2024

  1. High blood pressure74%
  2. High cholesterol69%
  3. Arthritis41%
  4. Diabetes38%
  5. Atrial fibrillation36%
  6. Anxiety28%
  7. Heart failure28%

Share of Medicare patients with each condition. A patient can have several.

Marianne Johnston's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women64%
  • Men34%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Marianne Stewart Johnston wrote 2,839 Medicare Part D claims in 2024

In 2024, Marianne Johnston wrote 2,839 Medicare Part D claims for 106 patients. 92% of them were for generic drugs.

Part D claims, 20242,839
Part D patients106

Marianne Johnston's Part D claims by kind of drug, 2024

  • Generic2,598 claims92%
  • Brand-name220 claims8%
  • Other21 claims1%

Drug classes CMS tracks in Marianne Johnston's Part D claims, 2024

  • Opioids16%449 of 2,839 claims
  • Antibiotics1%36 of 2,839 claims
  • Antipsychotics, patients 65 and over1%34 of 2,839 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Marianne Stewart Johnston takes part in Medicare

Marianne Johnston accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Marianne Stewart Johnston received $170 in industry payments in 2025

CMS Open Payments shows 8 general payments to Marianne Johnston from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $99.

Companies that paid Marianne Johnston the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Marianne Johnston

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Marianne Stewart Johnston's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Marianne Stewart Johnston

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Marianne Stewart Johnston's NPI number?

Marianne Stewart Johnston's NPI number is 1871724658. It was assigned on July 28, 2009, and it is active in the NPI Registry.

What does Marianne Stewart Johnston specialize in?

Marianne Stewart Johnston is a physician assistant in Bellevue, Washington. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Marianne Stewart Johnston practice?

Marianne Johnston practices at 11120 Ne 33rd Pl, Bellevue, WA 98004. Marianne Johnston's primary practice is Talbot Center for Rehabilitation and Healthcare in Bellevue, Washington. Dmand AI also links Marianne Johnston to 3 group practices and clinics and 2 medical groups.

What is Marianne Stewart Johnston's office phone number?

The practice phone on file for Marianne Johnston is (425) 226-7500.

What is Marianne Stewart Johnston's medical license number?

Marianne Johnston holds Washington license PA 60105502.

Which hospitals is Marianne Stewart Johnston affiliated with?

Marianne Johnston is affiliated with Valley Medical Center.

What medical group is Marianne Stewart Johnston part of?

Marianne Johnston is linked to Select Rehabilitation. Dmand AI links Marianne Johnston to 2 more medical groups.

Does Marianne Stewart Johnston accept Medicare?

Yes. CMS lists Marianne Johnston as accepting Medicare assignment.

How many Medicare patients does Marianne Stewart Johnston see?

CMS counts 39 Medicare patients who saw Marianne Johnston in 2024, with an average age of 76.

Has Marianne Stewart Johnston received payments from drug or device companies?

CMS Open Payments shows $170 in general payments to Marianne Johnston from 4 companies from 2025 to 2025. The largest total came from Novo Nordisk Inc.

How long has Marianne Stewart Johnston been practicing?

Marianne Johnston graduated from medical school in 2005, 21 years ago.

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