Sydney Pfefer, ARNP
- Hospital affiliations
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 901 Mountain View Dr, Shelton, WA 98584
- Practice phone
- Call (360) 427-9549
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mason General Hosptial
Shelton, Washington
Find Sydney Pfefer'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.
Sydney Pfefer is a nurse practitioner in Shelton, Washington
Sydney Pfefer practices at Mason General Hosptial in Shelton, Washington.
Sydney Pfefer's NPI, 1003702473, was assigned on June 13, 2025. Sydney Pfefer graduated from Vanderbilt University School of Medicine in 2025. Sydney Pfefer holds Washington license 70049733.
- NPI
- 1003702473NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577053818
- NPI enumeration date
- June 13, 2025
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (360) 427-9549
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Sydney Pfefer practices at Mason General Hosptial in Shelton, Washington
Sydney Pfefer's primary practice is Mason General Hosptial, at 901 Mountain View Dr, Shelton, WA 98584 in Mason County. The practice phone is (360) 427-9549.
- Mason General Hosptial901 Mountain View Dr, Shelton, WA 98584 · Mason CountyPhone(360) 427-9549
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Sydney Pfefer is affiliated with 5 sites of care and 2 medical groups
Sydney Pfefer's primary practice is Mason General Hosptial in Shelton, Washington. Sydney Pfefer is also affiliated with Providence St. Peter Hospital. The medical group on file is Mason Health. Dmand AI also links Sydney Pfefer to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Sydney Pfefer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sydney Pfefer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mason General Hosptial | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Sydney Pfefer is one of 1,633 nurse practitioners in Washington
Nurse practitioner is Sydney Pfefer's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Sydney Pfefer is licensed in Washington.
Specialties and state licenses
- Nurse practitioner, WashingtonPrimary
Nurse practitioners near Sydney Pfefer
Counts of nurse practitioners 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
Sydney Pfefer's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Sydney Pfefer's median patient age at 69, with 60% women.
Sydney Pfefer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
How Sydney Pfefer takes part in Medicare
Sydney Pfefer 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)
Sydney Pfefer graduated from Vanderbilt University School of Medicine
Sydney Pfefer graduated from Vanderbilt University School of Medicine in 2025.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Sydney Pfefer'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Sydney Pfefer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Sydney Pfefer's NPI number?
Sydney Pfefer's NPI number is 1003702473. It was assigned on June 13, 2025, and it is active in the NPI Registry.
What does Sydney Pfefer specialize in?
Sydney Pfefer is a nurse practitioner in Shelton, Washington. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Sydney Pfefer practice?
Sydney Pfefer practices at 901 Mountain View Dr, Shelton, WA 98584. Sydney Pfefer's primary practice is Mason General Hosptial in Shelton, Washington. Dmand AI also links Sydney Pfefer to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Sydney Pfefer's office phone number?
The practice phone on file for Sydney Pfefer is (360) 427-9549.
What is Sydney Pfefer's medical license number?
Sydney Pfefer holds Washington license 70049733.
Which hospitals is Sydney Pfefer affiliated with?
Sydney Pfefer is affiliated with Providence St. Peter Hospital. Dmand AI links Sydney Pfefer to 1 more hospital.
What medical group is Sydney Pfefer part of?
Sydney Pfefer is linked to Mason Health. Dmand AI links Sydney Pfefer to 1 more medical group.
Does Sydney Pfefer accept Medicare?
Yes. CMS lists Sydney Pfefer as accepting Medicare assignment.
Where did Sydney Pfefer go to medical school?
Sydney Pfefer graduated from Vanderbilt University School of Medicine in 2025.
How long has Sydney Pfefer been practicing?
Sydney Pfefer graduated from medical school in 2025, 1 years ago.
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