Adam John Darby

  • Thousand Oaks, CA
  • Neurologist
NPI1376842898PAC ID3375852643
Medicare services, 2024
1,430
Medicare patients, 2024
712
Part D claims, 2024
3,501
MIPS score, 2024
94
Hospital affiliations
5
Practice address
2100 Lynn Rd, Thousand Oaks, CA 91360
Practice phone
Call (310) 391-7281
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Regents of the University of California Los Angeles

Thousand Oaks, California

See all 13 affiliations

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Adam John Darby is a neurologist in Thousand Oaks, California

Adam Darby practices at Regents of the University of California Los Angeles in Thousand Oaks, California.

Adam Darby's NPI, 1376842898, was assigned on March 23, 2011. Adam Darby graduated from St. George's University School of Medicine in 2011. Adam Darby holds California license A136681.

NPI and contact details
Medicare PAC ID
3375852643
NPI enumeration date
March 23, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 391-7281
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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Adam John Darby practices at Regents of the University of California Los Angeles in Thousand Oaks, California

Adam Darby's primary practice is Regents of the University of California Los Angeles, at 2100 Lynn Rd, Thousand Oaks, CA 91360 in Ventura County. The practice phone is (310) 391-7281.

  • Regents of the University of California Los Angeles
    2100 Lynn Rd, Thousand Oaks, CA 91360 · Ventura CountyPhone(310) 391-7281

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Adam John Darby is affiliated with 10 sites of care and 3 medical groups

Adam Darby's primary practice is Regents of the University of California Los Angeles in Thousand Oaks, California. Adam Darby is also affiliated with Los Robles Regional Medical Center. The medical group on file is UCLA Medical Group. Dmand AI also links Adam Darby to 4 more hospitals, 3 group practices and clinics, 2 medical groups and 1 home health agency, each named with a free account.

See all 13 affiliations for Adam Darby

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Adam John Darby's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Adam Darby practices, 9 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Regents of the University of California Los AngelesAvailable with a free account
+9 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Adam John Darby is one of 2,207 neurologists in California

Neurology is Adam Darby's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Adam Darby is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Adam Darby's licenses on file in 2 states: California and Vermont.

Specialties and state licenses

  • Neurology, CaliforniaPrimaryLicense A136681 · 2015 to 2026 · taxonomy 2084N0400X
  • Vermont license2011 to 2015

Clinical focus

Dmand AI lists acute mini-stroke (TIA), alzheimer's disease, carpal tunnel syndrome, cerebrovascular disease, encephalopathy, epilepsy, essential tremor and fibromyalgia and chronic pain among the conditions Adam Darby treats.

Neurologists near Adam Darby

Counts of neurologists 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

Adam John Darby billed Medicare for 1,430 services in 2024

CMS data shows 1,430 Medicare services from Adam Darby across 8 procedure codes in 2024, for 712 Medicare patients. Medicare paid $178,721 for them. Every service was in an office.

Medicare services, 20241,430
Medicare patients712
Paid by Medicare$178,721
Procedure codes8

Adam Darby's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,3772024: 1,3931%
Tests and treatments
2023: 402024: 378%
Other services
2023: 702024: 0100%

Adam Darby compared with the California median for neurologists, 2024

  • Adam Darby
  • California median
Medicare services
1,430vs 4043.5 times
Medicare patients
712vs 1903.7 times
Part D claims
3,249vs 32410.0 times

Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.

Adam Darby'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.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Adam John Darby treated 712 Medicare patients in 2024, average age 76

CMS counts 712 Medicare patients who saw Adam Darby in 2024. The largest group is 75 to 84, with 321 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Adam Darby's median patient age at 71, with 58% women.

Medicare patients, 2024712
Average age76
Average risk score1.47
Also on Medicaid9%

Adam Darby's Medicare patients by age, 2024

Adam Darby's Medicare patients by sex, 2024

  • Women37653%
  • Men33647%

Chronic conditions among Adam Darby's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure72%
  3. Arthritis61%
  4. Mood disorders38%
  5. Ischemic heart disease37%
  6. Alzheimer's and dementia34%
  7. Anxiety34%
  8. Depression33%

Share of Medicare patients with each condition. A patient can have several.

Adam Darby's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women58%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Adam John Darby wrote 3,501 Medicare Part D claims in 2024

In 2024, Adam Darby wrote 3,501 Medicare Part D claims for 548 patients. 90% of them were for generic drugs. CMS names the drug for 3,249 of them, across 53 drugs with 11 or more claims each, at $604,642 in total drug cost. In 2023, CMS named 2,681 claims across 51 drugs.

Part D claims, 20243,501
Drugs named by CMS53
Total drug cost$604,642
Part D patients548

Adam Darby's Part D claims by kind of drug, 2024

  • Generic3,155 claims90%
  • Brand-name332 claims9%
  • Other14 claims0%

Adam Darby'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 Adam Darby's Part D claims, 2024

  • Antipsychotics, patients 65 and over2%83 of 3,501 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: 2,6812024: 3,24921%

Drugs named by CMS: 53 in 2024, 51 in 2023.

See all prescribing by Adam Darby

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

Adam John Darby scored 94 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Adam Darby for performance year 2024, reported as part of a group. Adam Darby accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Adam Darby as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Adam Darby's MIPS scores, performance year 2024

  • 94of 100Final score
  • 86.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 67of 100Cost

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

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Adam John Darby received $214 in industry payments from 2017 to 2018

CMS Open Payments shows 6 general payments to Adam Darby from 3 drug and device companies from 2017 to 2018. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $111.

General payments to Adam Darby by program year, 2017 to 2018

Companies that paid Adam Darby the most, 2017 to 2018

Share is of all general payments to this clinician.

See all payments to Adam Darby

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Adam John Darby graduated from St. George's University School of Medicine

Adam Darby graduated from St. George's University School of Medicine in 2011.

  1. Medical schoolSt. George's University School of Medicine
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology
  3. Board certified in diplomate behavioral neruology and neuropsychiatryUnited Council for Neurological Subspecialties

Source: Dmand AI Professional Profile Data

Adam John Darby accepts plans from 14 insurance carriers

Adam Darby is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +6 more carriersWith a free account

Plan types Adam Darby accepts, by number of carriers

  1. PPO9
  2. Medicare8
  3. HMO7
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Adam John Darby's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Adam John Darby

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Adam John Darby's NPI number?

Adam John Darby's NPI number is 1376842898. It was assigned on March 23, 2011, and it is active in the NPI Registry.

What does Adam John Darby specialize in?

Adam John Darby is a neurologist in Thousand Oaks, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Adam John Darby practice?

Adam Darby practices at 2100 Lynn Rd, Thousand Oaks, CA 91360. Adam Darby's primary practice is Regents of the University of California Los Angeles in Thousand Oaks, California. Dmand AI also links Adam Darby to 4 hospitals, 3 group practices and clinics, 2 medical groups and 1 home health agency.

What is Adam John Darby's office phone number?

The practice phone on file for Adam Darby is (310) 391-7281.

What is Adam John Darby's medical license number?

Adam Darby holds California license A136681, one of the licenses on file in 2 states.

Which states has Adam John Darby been licensed in?

Dmand AI has state licenses on file for Adam Darby in California (2015 to 2026) and Vermont (2011 to 2015).

Which hospitals is Adam John Darby affiliated with?

Adam Darby is affiliated with Los Robles Regional Medical Center. Dmand AI links Adam Darby to 4 more hospitals.

What medical group is Adam John Darby part of?

Adam Darby is linked to UCLA Medical Group. Dmand AI links Adam Darby to 2 more medical groups.

Does Adam John Darby accept Medicare?

Yes. CMS data shows Adam Darby billed Medicare for 1,430 services in 2024, and Adam Darby accepts Medicare assignment.

Does Adam John Darby offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Adam Darby as offering telehealth services.

Show 9 more questionsShow fewer questions

What is Adam John Darby's MIPS score?

Adam Darby's MIPS final score for performance year 2024 is 94 out of 100, reported as part of a group.

How many Medicare patients does Adam John Darby see?

CMS counts 712 Medicare patients who saw Adam Darby in 2024, with an average age of 76.

Is Adam John Darby board certified?

Yes. Adam Darby is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Adam John Darby bill to Medicare?

In 2024, Adam Darby's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and office visit, new patient (99205).

Where did Adam John Darby go to medical school?

Adam Darby graduated from St. George's University School of Medicine in 2011.

What drugs does Adam John Darby prescribe most?

In 2024 Medicare Part D data, Adam Darby's most prescribed drugs by claims were Donepezil HCl, Gabapentin and Memantine HCl.

Has Adam John Darby received payments from drug or device companies?

CMS Open Payments shows $214 in general payments to Adam Darby from 3 companies from 2017 to 2018. The largest total came from Stryker Corporation.

How long has Adam John Darby been practicing?

Adam Darby graduated from medical school in 2011, 15 years ago.

What insurance does Adam John Darby accept?

Adam Darby is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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