Dr. William Francis Pierson, MD
- Medicare services, 2024
- 229
- Medicare patients, 2024
- 71
- Part D claims, 2024
- 1,808
- MIPS score, 2024
- 87
- Hospital affiliations
- 2
- Practice address
- 1035-116Th Ave NE, Bellevue, WA 98004
- Practice phone
- Call (425) 688-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Pierson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William Francis Pierson is a psychiatrist in Bellevue, Washington
Dr. Pierson practices at Overlake Medical Center in Bellevue, Washington, part of MultiCare Health System.
Dr. Pierson's NPI, 1528357001, was assigned on April 5, 2011. Dr. Pierson graduated from State University of New York at Buffalo School of Medicine in 2011. Dr. Pierson holds Washington license MD60554339.
- NPI
- 1528357001NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325288350
- NPI enumeration date
- April 5, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (425) 688-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Francis Pierson practices at Overlake Medical Center in Bellevue, Washington
Dr. Pierson's primary practice is Overlake Medical Center, at 1035-116Th Ave NE, Bellevue, WA 98004 in King County. The practice phone is (425) 688-5000.
- Overlake Medical Center1035-116Th Ave NE, Bellevue, WA 98004 · King CountyPhone(425) 688-5000
Source: Dmand AI Affiliation Data
Dr. William Francis Pierson is affiliated with 3 sites of care and 2 medical groups
Dr. Pierson's primary practice is Overlake Medical Center in Bellevue, Washington, part of MultiCare Health System. Dr. Pierson is also affiliated with EvergreenHealth Medical Center. The medical group on file is Overlake Clinics Cardiology. Dmand AI also links Dr. Pierson to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Francis Pierson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pierson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Overlake Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across MultiCare Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William Francis Pierson is one of 758 psychiatrists in Washington
Psychiatry is Dr. Pierson's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Pierson is licensed in Washington.
Specialties and state licenses
- Psychiatry, WashingtonPrimary
Psychiatrists near Dr. Pierson
Counts of psychiatrists 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
Dr. William Francis Pierson billed Medicare for 229 services in 2024
CMS data shows 229 Medicare services from Dr. Pierson across 3 procedure codes in 2024, for 71 Medicare patients. Medicare paid $14,218 for them. Every service was in an office.
Dr. Pierson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1712024: 18911%
- Other services
- 2023: 02024: 40
Dr. Pierson compared with the Washington median for psychiatrists, 2024
- Dr. Pierson
- Washington median
- Medicare services
- 229vs 1122.0 times
- Medicare patients
- 71vs 352.0 times
- Part D claims
- 1,592vs 10415.3 times
Medians across 856 psychiatrists in Washington with Dmand AI profiles that report each measure.
Dr. Pierson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Pierson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pierson and other psychiatrists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Francis Pierson treated 71 Medicare patients in 2024, average age 69
CMS counts 71 Medicare patients who saw Dr. Pierson in 2024. The largest group is 65 to 74, with 31 patients. 75% of them have mood disorders, and 73% have anxiety. Their average risk score is 1.18, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Pierson's median patient age at 49, with 55% women.
Dr. Pierson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Pierson's Medicare patients by sex, 2024
- Women4056%
- Men3144%
Chronic conditions among Dr. Pierson's Medicare patients, 2024
- Mood disorders75%
- Anxiety73%
- High cholesterol63%
- High blood pressure62%
- Depression58%
- Arthritis35%
- Bipolar disorder31%
- Chronic kidney disease24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pierson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Francis Pierson wrote 1,808 Medicare Part D claims in 2024
In 2024, Dr. Pierson wrote 1,808 Medicare Part D claims for 167 patients. 93% of them were for generic drugs. CMS names the drug for 1,592 of them, across 41 drugs with 11 or more claims each, at $253,693 in total drug cost. In 2023, CMS named 1,719 claims across 44 drugs.
Dr. Pierson's Part D claims by kind of drug, 2024
- Generic1,683 claims93%
- Brand-name125 claims7%
Dr. Pierson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Pierson's Part D claims, 2024
- Antipsychotics, patients 65 and over14%258 of 1,808 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,7192024: 1,5927%
Drugs named by CMS: 41 in 2024, 44 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. William Francis Pierson scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Pierson for performance year 2024, reported through an alternative payment model (APM). Dr. Pierson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Pierson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Pierson's MIPS scores, performance year 2024
- 87of 100Final score
- 73.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. William Francis Pierson received $152 in industry payments from 2019 to 2021
CMS Open Payments shows 2 general payments to Dr. Pierson from 2 drug and device companies from 2019 to 2021. Food and beverage make up the largest share, 69% of the total. Janssen Pharmaceuticals, Inc paid the most, $105.
General payments to Dr. Pierson by program year, 2019 to 2021
General payments to Dr. Pierson by kind, 2019 to 2021
- Food and beverage$10569%
- Education$4731%
Companies that paid Dr. Pierson the most, 2019 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Francis Pierson graduated from State University of New York at Buffalo School of Medicine
Dr. Pierson graduated from State University of New York at Buffalo School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Francis Pierson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Francis Pierson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Francis Pierson's NPI number?
Dr. William Francis Pierson's NPI number is 1528357001. It was assigned on April 5, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. William Francis Pierson?
Dr. William Francis Pierson is a psychiatrist in Bellevue, Washington. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. William Francis Pierson practice?
Dr. Pierson practices at 1035-116Th Ave NE, Bellevue, WA 98004. Dr. Pierson's primary practice is Overlake Medical Center in Bellevue, Washington, part of MultiCare Health System. Dmand AI also links Dr. Pierson to 1 group practice or clinic and 1 medical group.
What is Dr. William Francis Pierson's office phone number?
The practice phone on file for Dr. Pierson is (425) 688-5000.
What is Dr. William Francis Pierson's medical license number?
Dr. Pierson holds Washington license MD60554339.
Which hospitals is Dr. William Francis Pierson affiliated with?
Dr. Pierson practices at Overlake Medical Center in Bellevue, Washington. Dr. Pierson is also affiliated with EvergreenHealth Medical Center.
What medical group is Dr. William Francis Pierson part of?
Dr. Pierson is linked to Overlake Clinics Cardiology. Dmand AI links Dr. Pierson to 1 more medical group.
Does Dr. William Francis Pierson accept Medicare?
Yes. CMS data shows Dr. Pierson billed Medicare for 229 services in 2024, and Dr. Pierson accepts Medicare assignment.
Does Dr. William Francis Pierson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Pierson as offering telehealth services.
What is Dr. William Francis Pierson's MIPS score?
Dr. Pierson's MIPS final score for performance year 2024 is 87 out of 100, reported through an alternative payment model (APM).
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. William Francis Pierson see?
CMS counts 71 Medicare patients who saw Dr. Pierson in 2024, with an average age of 69.
What services does Dr. William Francis Pierson bill to Medicare?
In 2024, Dr. Pierson's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).
Where did Dr. William Francis Pierson go to medical school?
Dr. Pierson graduated from State University of New York at Buffalo School of Medicine in 2011.
What drugs does Dr. William Francis Pierson prescribe most?
In 2024 Medicare Part D data, Dr. Pierson's most prescribed drugs by claims were Lamotrigine, Fluoxetine HCl and Olanzapine.
Has Dr. William Francis Pierson received payments from drug or device companies?
CMS Open Payments shows $152 in general payments to Dr. Pierson from 2 companies from 2019 to 2021. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. William Francis Pierson been practicing?
Dr. Pierson graduated from medical school in 2011, 15 years ago.
Selling to psychiatry practices?
See psychiatrists in Washington by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card