Kristen M. Maefsky, ARNP
- Medicare patients, 2024
- 247
- Part D claims, 2024
- 3,806
- Affiliated sites
- 8
- Medical groups
- 6
- State license
- 1
- Practice address
- 8511 N Fallbrook Ave, West Hills, CA 91304
- Practice phone
- Call (865) 693-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Washington Pac Services
West Hills, California
Find Kristen Maefsky'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.
Kristen M. Maefsky is a family nurse practitioner in West Hills, California
Kristen Maefsky practices at Washington Pac Services in West Hills, California.
Kristen Maefsky's NPI, 1528363835, was assigned on January 18, 2011. Kristen Maefsky holds Washington license AP60208055.
- NPI
- 1528363835NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911181524
- NPI enumeration date
- January 18, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 693-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Kristen M. Maefsky practices at Washington Pac Services in West Hills, California
Kristen Maefsky's primary practice is Washington Pac Services, at 8511 N Fallbrook Ave, West Hills, CA 91304 in Los Angeles County. The practice phone is (865) 693-1000.
- Washington Pac Services8511 N Fallbrook Ave, West Hills, CA 91304 · Los Angeles CountyPhone(865) 693-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Kristen M. Maefsky is affiliated with 9 sites of care and 6 medical groups
Kristen Maefsky's primary practice is Washington Pac Services in West Hills, California. The medical group on file is TeamHealth. Dmand AI also links Kristen Maefsky to 6 more group practices and clinics, 5 medical groups and 2 home health agencies, 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 Kristen M. Maefsky's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Kristen Maefsky practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Washington Pac Services | Available with a free account |
| +8 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Kristen M. Maefsky is one of 13,532 family nurse practitioners in California
Family is Kristen Maefsky's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Kristen Maefsky is licensed in Washington.
Specialties and state licenses
- Family nurse practitioner, WashingtonPrimary
Family nurse practitioners near Kristen Maefsky
Counts of family 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
Kristen M. Maefsky treated 247 Medicare patients in 2024, average age 84
CMS counts 247 Medicare patients who saw Kristen Maefsky in 2024. The largest group is 85 and over, with 125 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.03, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Kristen Maefsky's median patient age at 86, with 72% women.
Kristen Maefsky's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Kristen Maefsky's Medicare patients by sex, 2024
- Women15764%
- Men9036%
Chronic conditions among Kristen Maefsky's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis64%
- Mood disorders55%
- Depression53%
- Alzheimer's and dementia45%
- Heart failure45%
- Anxiety44%
Share of Medicare patients with each condition. A patient can have several.
Kristen Maefsky's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 86
Patient panel by sex, all payers
- Women72%
- Men28%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Kristen M. Maefsky wrote 3,806 Medicare Part D claims in 2024
In 2024, Kristen Maefsky wrote 3,806 Medicare Part D claims for 191 patients. 83% of them were for generic drugs.
Kristen Maefsky's Part D claims by kind of drug, 2024
- Generic3,144 claims83%
- Brand-name648 claims17%
- Other14 claims0%
Drug classes CMS tracks in Kristen Maefsky's Part D claims, 2024
- Opioids3%107 of 3,806 claims
- Antibiotics2%89 of 3,806 claims
- Antipsychotics, patients 65 and over3%119 of 3,806 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 Kristen M. Maefsky takes part in Medicare
Kristen Maefsky 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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Sources for Kristen M. Maefsky'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | 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) |
| 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 Kristen M. Maefsky
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Kristen M. Maefsky's NPI number?
Kristen M. Maefsky's NPI number is 1528363835. It was assigned on January 18, 2011, and it is active in the NPI Registry.
What does Kristen M. Maefsky specialize in?
Kristen M. Maefsky is a family nurse practitioner in West Hills, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Kristen M. Maefsky practice?
Kristen Maefsky practices at 8511 N Fallbrook Ave, West Hills, CA 91304. Kristen Maefsky's primary practice is Washington Pac Services in West Hills, California. Dmand AI also links Kristen Maefsky to 6 group practices and clinics, 5 medical groups and 2 home health agencies.
What is Kristen M. Maefsky's office phone number?
The practice phone on file for Kristen Maefsky is (865) 693-1000.
What is Kristen M. Maefsky's medical license number?
Kristen Maefsky holds Washington license AP60208055.
What medical group is Kristen M. Maefsky part of?
Kristen Maefsky is linked to TeamHealth. Dmand AI links Kristen Maefsky to 5 more medical groups.
Does Kristen M. Maefsky accept Medicare?
Yes. CMS lists Kristen Maefsky as accepting Medicare assignment.
How many Medicare patients does Kristen M. Maefsky see?
CMS counts 247 Medicare patients who saw Kristen Maefsky in 2024, with an average age of 84.
How long has Kristen M. Maefsky been practicing?
Kristen Maefsky graduated from medical school in 2010, 16 years ago.
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