Douglas Logan Williamson, DNP
- Part D claims, 2024
- 557
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 1515 E Ocean Avenue, Lompoc, CA 93436
- Practice phone
- Call (805) 737-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Douglas Williamson'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.
Douglas Logan Williamson is a psychiatric/mental health nurse practitioner in Lompoc, California
Douglas Williamson practices at Lompoc Valley Medical Center in Lompoc, California, part of Lompoc Valley Medical Center.
Douglas Williamson's NPI, 1386240844, was assigned on December 9, 2020. Douglas Williamson holds California license 95016180.
- NPI
- 1386240844NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103230479
- NPI enumeration date
- December 9, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (805) 737-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Douglas Logan Williamson practices at 2 locations in Lompoc, California
Douglas Williamson's primary practice is Lompoc Valley Medical Center, at 1515 E Ocean Avenue, Lompoc, CA 93436 in Santa Barbara County. The practice phone is (805) 737-3300. Douglas Williamson also practices at Lompoc Valley Medical Center, 1509 Ocean Way, Lompoc, CA 93436.
- Lompoc Valley Medical CenterPrimary1515 E Ocean Avenue, Lompoc, CA 93436 · Santa Barbara CountyPhone(805) 737-3300
- Lompoc Valley Medical Center1509 Ocean Way, Lompoc, CA 93436 · Santa Barbara CountyPhone(805) 737-3300
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Douglas Logan Williamson is affiliated with 2 sites of care and 1 medical group
Douglas Williamson's primary practice is Lompoc Valley Medical Center in Lompoc, California, part of Lompoc Valley Medical Center. The medical group on file is Pacific Psychiatry, Inc. Dmand AI also links Douglas Williamson to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Douglas Logan Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Douglas Williamson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lompoc Valley Medical Center | Available with a free account |
| +1 more affiliated site | 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 Lompoc Valley Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Douglas Logan Williamson is one of 3,099 psychiatric/mental health nurse practitioners in California
Psychiatric/mental health is Douglas Williamson's primary specialty in the NPI Registry, under taxonomy code 363LP0808X. Douglas Williamson is licensed in California.
Specialties and state licenses
- Psychiatric/mental health nurse practitioner, CaliforniaPrimary
Clinical focus
Dmand AI lists anxiety and bipolar disorder among the conditions Douglas Williamson treats.
Psychiatric/mental health nurse practitioners near Douglas Williamson
Counts of psychiatric/mental health 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
Douglas Logan Williamson's patients have a median age of 48
Across all payers, Dmand AI patient panel data puts Douglas Williamson's median patient age at 48, with 80% women.
Douglas Williamson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women80%
- Men20%
Source: Dmand AI Patient Panel Data
Douglas Logan Williamson wrote 557 Medicare Part D claims in 2024
In 2024, Douglas Williamson wrote 557 Medicare Part D claims for 39 patients. 99% of them were for generic drugs. CMS names the drug for 504 of them, across 19 drugs with 11 or more claims each, at $4,901 in total drug cost.
Douglas Williamson's Part D claims by kind of drug, 2024
- Generic554 claims99%
- Brand-name and other3 claims1%
Douglas Williamson'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 Douglas Williamson's Part D claims, 2024
- Antipsychotics, patients 65 and over6%32 of 557 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
Douglas Logan Williamson offers telehealth to Medicare patients
Douglas Williamson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Douglas Williamson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Sources for Douglas Logan Williamson'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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) |
| 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 Douglas Logan Williamson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Douglas Logan Williamson's NPI number?
Douglas Logan Williamson's NPI number is 1386240844. It was assigned on December 9, 2020, and it is active in the NPI Registry.
What does Douglas Logan Williamson specialize in?
Douglas Logan Williamson is a psychiatric/mental health nurse practitioner in Lompoc, California. The primary specialty in the NPI Registry is Psychiatric/Mental Health Nurse Practitioner (taxonomy code 363LP0808X).
Where does Douglas Logan Williamson practice?
Douglas Williamson practices at 1515 E Ocean Avenue, Lompoc, CA 93436. Douglas Williamson also practices at 1509 Ocean Way, Lompoc, CA 93436. Douglas Williamson's primary practice is Lompoc Valley Medical Center in Lompoc, California, part of Lompoc Valley Medical Center. Dmand AI also links Douglas Williamson to 1 group practice or clinic.
What is Douglas Logan Williamson's office phone number?
The practice phone on file for Douglas Williamson is (805) 737-3300.
What is Douglas Logan Williamson's medical license number?
Douglas Williamson holds California license 95016180.
Which hospitals is Douglas Logan Williamson affiliated with?
Douglas Williamson practices at Lompoc Valley Medical Center in Lompoc, California.
What medical group is Douglas Logan Williamson part of?
Douglas Williamson is linked to Pacific Psychiatry, Inc.
Does Douglas Logan Williamson accept Medicare?
Yes. CMS lists Douglas Williamson as accepting Medicare assignment.
Does Douglas Logan Williamson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Douglas Williamson as offering telehealth services.
What drugs does Douglas Logan Williamson prescribe most?
In 2024 Medicare Part D data, Douglas Williamson's most prescribed drugs by claims were Lamotrigine, Bupropion XL and Trazodone HCl.
How long has Douglas Logan Williamson been practicing?
Douglas Williamson graduated from medical school in 2020, 6 years ago.
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