Mary Catherine Overlander, FNP
- Part D claims, 2024
- 609
- Industry payments
- $2,942
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 23772 Newhall Ave, Newhall, CA 91321
- Practice phone
- Call (661) 257-4008
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Samuel Dixon Family Health Center
Primary care practice · Newhall, California
Find Mary Overlander's professional email, personal email and mobile number
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Mary Catherine Overlander is a family nurse practitioner in California
Mary Overlander practices at Samuel Dixon Family Health Center in Newhall, California.
Mary Overlander's NPI, 1629582341, was assigned on November 17, 2017. Mary Overlander holds California license 95007490.
- NPI
- 1629582341NPI Registry (opens in a new tab)
- NPI enumeration date
- November 17, 2017
- NPI status
- Active
- Practice phone
- (661) 257-4008
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Catherine Overlander practices at Samuel Dixon Family Health Center in Newhall, California
Mary Overlander's primary practice is Samuel Dixon Family Health Center, at 23772 Newhall Ave, Newhall, CA 91321. The practice phone is (661) 257-4008.
- Samuel Dixon Family Health Center23772 Newhall Ave, Newhall, CA 91321Phone(661) 257-4008
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Catherine Overlander is affiliated with 1 site of care and 1 medical group
Mary Overlander's primary practice is Samuel Dixon Family Health Center in Newhall, California. The medical group on file is Samuel Dixon Family Health Center.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Mary Catherine Overlander's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Overlander practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Samuel Dixon Family Health Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary Catherine Overlander is one of 13,532 family nurse practitioners in California
Family is Mary Overlander's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Mary Overlander is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Family nurse practitioners near Mary Overlander
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
Mary Catherine Overlander's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Mary Overlander's median patient age at 54, with 66% women.
Mary Overlander's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women66%
- Men34%
Source: Dmand AI Patient Panel Data
Mary Catherine Overlander wrote 609 Medicare Part D claims in 2024
In 2024, Mary Overlander wrote 609 Medicare Part D claims for 88 patients. 87% of them were for generic drugs. CMS names the drug for 299 of them, across 13 drugs with 11 or more claims each, at $3,396 in total drug cost.
Mary Overlander's Part D claims by kind of drug, 2024
- Generic529 claims87%
- Brand-name and other80 claims13%
Mary Overlander'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 Mary Overlander's Part D claims, 2024
- Antibiotics3%20 of 609 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
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Mary Catherine Overlander received $2,942 in industry payments from 2024 to 2025
CMS Open Payments shows 51 general payments to Mary Overlander from 17 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $793.
General payments to Mary Overlander by program year, 2024 to 2025
Companies that paid Mary Overlander the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Mary Catherine Overlander'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Industry payments | Open Payments (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 Mary Catherine Overlander
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Catherine Overlander's NPI number?
Mary Catherine Overlander's NPI number is 1629582341. It was assigned on November 17, 2017, and it is active in the NPI Registry.
What does Mary Catherine Overlander specialize in?
Mary Catherine Overlander is a family nurse practitioner in California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Mary Catherine Overlander practice?
Mary Overlander practices at 23772 Newhall Ave, Newhall, CA 91321. Mary Overlander's primary practice is Samuel Dixon Family Health Center in Newhall, California.
What is Mary Catherine Overlander's office phone number?
The practice phone on file for Mary Overlander is (661) 257-4008.
What is Mary Catherine Overlander's medical license number?
Mary Overlander holds California license 95007490.
What medical group is Mary Catherine Overlander part of?
Mary Overlander is linked to Samuel Dixon Family Health Center.
What drugs does Mary Catherine Overlander prescribe most?
In 2024 Medicare Part D data, Mary Overlander's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Mary Catherine Overlander received payments from drug or device companies?
CMS Open Payments shows $2,942 in general payments to Mary Overlander from 17 companies from 2024 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Mary Catherine Overlander been practicing?
Mary Overlander's NPI was assigned in 2017.
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