Alison Johnson Headley

  • San Diego, CA
  • Neurologist
NPI1386007383PAC ID2365848272
Medicare services, 2024
320
Medicare patients, 2024
180
Part D claims, 2024
904
Publications
2
MIPS score, 2024
91
Practice address
200 W Arbor Dr, San Diego, CA 92103
Practice phone
Call (619) 543-6222
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

See all 3 affiliations

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Alison Johnson Headley is a neurologist in San Diego, California

Alison Headley practices at UCSD Hillcrest Medical Center in San Diego, California.

Alison Headley's NPI, 1386007383, was assigned on March 29, 2016. Alison Headley graduated from University of Miami, Miller School of Medicine in 2016. Alison Headley's California license number on file is A153316.

NPI and contact details
Medicare PAC ID
2365848272
NPI enumeration date
March 29, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(619) 543-6222
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
36
Medical school graduation
2016

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Alison Johnson Headley practices at UCSD Hillcrest Medical Center in San Diego, California

Alison Headley's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.

  • UCSD Hillcrest Medical Center
    200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222

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

Alison Johnson Headley is affiliated with 2 sites of care and 1 medical group

Alison Headley's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Alison Headley is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health.

See all 3 affiliations for Alison Headley

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 Alison Johnson Headley's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Alison Headley practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSD Hillcrest Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Alison Johnson Headley is one of 2,207 neurologists in California

Neurology is Alison Headley's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Alison Headley is board certified in epilepsy by the American Board of Psychiatry and Neurology. Alison Headley has a license on file in California.

Specialties and state licenses

  • Neurology, CaliforniaPrimaryLicense A153316 · 2017 to 2025 · taxonomy 2084N0400X

Clinical focus

Dmand AI lists acute mini-stroke (TIA), encephalopathy, epilepsy, lower back pain and sleep apnea among the conditions Alison Headley treats.

Neurologists near Alison Headley

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

Alison Johnson Headley billed Medicare for 320 services in 2024

CMS data shows 320 Medicare services from Alison Headley across 7 procedure codes in 2024, for 180 Medicare patients. Medicare paid $33,121 for them.

Medicare services, 2024320
Medicare patients180
Paid by Medicare$33,121
Procedure codes7

Alison Headley's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1972024: 15919%
Tests and treatments
2023: 1552024: 9936%
Other services
2023: 342024: 6282%

Where Alison Headley's Medicare services took place, 2024

  • In an office24476%
  • In a facility7624%

Alison Headley compared with the California median for neurologists, 2024

  • Alison Headley
  • California median
Medicare services
320vs 40421% below
Medicare patients
180vs 1905% below
Part D claims
811vs 3242.5 times

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

Alison Headley'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.

See all procedures by Alison Headley

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

Alison Johnson Headley treated 180 Medicare patients in 2024, average age 70

CMS counts 180 Medicare patients who saw Alison Headley in 2024. The largest group is 75 to 84, with 60 patients. 73% of them have high blood pressure, and 66% have high cholesterol. 41% are also on Medicaid. Their average risk score is 2.22, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Alison Headley's median patient age at 77, with 55% women.

Medicare patients, 2024180
Average age70
Average risk score2.22
Also on Medicaid41%

Alison Headley's Medicare patients by age, 2024

Alison Headley's Medicare patients by sex, 2024

  • Women9754%
  • Men8346%

Chronic conditions among Alison Headley's Medicare patients, 2024

  1. High blood pressure73%
  2. High cholesterol66%
  3. Arthritis50%
  4. Alzheimer's and dementia49%
  5. Mood disorders47%
  6. Depression43%
  7. Anxiety39%
  8. Stroke or TIA32%

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

Alison Headley's patients across all payers

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

Patient panel by age, all payers

Median age 77

Patient panel by sex, all payers

  • Women55%
  • Men44%

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

Alison Johnson Headley wrote 904 Medicare Part D claims in 2024

In 2024, Alison Headley wrote 904 Medicare Part D claims for 85 patients. 88% of them were for generic drugs. CMS names the drug for 811 of them, across 20 drugs with 11 or more claims each, at $188,734 in total drug cost. In 2023, CMS named 722 claims across 20 drugs.

Part D claims, 2024904
Drugs named by CMS20
Total drug cost$188,734
Part D patients85

Alison Headley's Part D claims by kind of drug, 2024

  • Generic791 claims88%
  • Brand-name99 claims11%
  • Other14 claims2%

Alison Headley'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 7222024: 81112%

Drugs named by CMS: 20 in 2024, 20 in 2023.

See all prescribing by Alison Headley

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

Alison Johnson Headley scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Alison Headley for performance year 2024, reported as part of a group. Alison Headley accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Alison Headley as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Alison Headley's MIPS scores, performance year 2024

  • 91of 100Final score
  • 84.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 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

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Alison Johnson Headley has 2 publications on record

Dmand AI links 2 papers to Alison Headley, published from 2018 to 2019. Alison Headley's most frequent co-authors are Christian Johann Camargo, MD, Jerry Jeh Shih, MD and Xiaoyan Sun, MD.

Papers2
Years published2018 to 2019

Alison Headley's most frequent co-authors

Recent publications by Alison Headley

See all 2 publications and co-authors

See who Alison Headley researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Alison Headley works with, so you can find a warm path to the right neurologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Alison Johnson Headley graduated from University of Miami, Miller School of Medicine

Alison Headley graduated from University of Miami, Miller School of Medicine in 2016.

  1. Medical schoolUniversity of Miami, Miller School of Medicine
  2. Board certified in epilepsyAmerican Board of Psychiatry and Neurology
  3. Board certified in neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Alison Johnson Headley accepts plans from 15 insurance carriers

Alison Headley is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

Plan types Alison Headley accepts, by number of carriers

  1. Medicare10
  2. PPO10
  3. HMO8
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Alison Johnson Headley'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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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 Alison Johnson Headley

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

What is Alison Johnson Headley's NPI number?

Alison Johnson Headley's NPI number is 1386007383. It was assigned on March 29, 2016, and it is active in the NPI Registry.

What does Alison Johnson Headley specialize in?

Alison Johnson Headley is a neurologist in San Diego, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Alison Johnson Headley practice?

Alison Headley practices at 200 W Arbor Dr, San Diego, CA 92103. Alison Headley's primary practice is UCSD Hillcrest Medical Center in San Diego, California.

What is Alison Johnson Headley's office phone number?

The practice phone on file for Alison Headley is (619) 543-6222.

What is Alison Johnson Headley's medical license number?

Alison Headley's California license number on file is A153316.

Which hospitals is Alison Johnson Headley affiliated with?

Alison Headley is affiliated with Hillcrest Medical Center.

What medical group is Alison Johnson Headley part of?

Alison Headley is linked to UC San Diego Health.

Does Alison Johnson Headley accept Medicare?

Yes. CMS data shows Alison Headley billed Medicare for 320 services in 2024, and Alison Headley accepts Medicare assignment.

Does Alison Johnson Headley offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Alison Headley as offering telehealth services.

What is Alison Johnson Headley's MIPS score?

Alison Headley's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Alison Johnson Headley see?

CMS counts 180 Medicare patients who saw Alison Headley in 2024, with an average age of 70.

Is Alison Johnson Headley board certified?

Yes. Alison Headley is board certified in epilepsy by the American Board of Psychiatry and Neurology.

What services does Alison Johnson Headley bill to Medicare?

In 2024, Alison Headley's most billed Medicare services were office visit, established patient (99215), medicare service (G2211) and office visit, established patient (99214).

Where did Alison Johnson Headley go to medical school?

Alison Headley graduated from University of Miami, Miller School of Medicine in 2016.

What drugs does Alison Johnson Headley prescribe most?

In 2024 Medicare Part D data, Alison Headley's most prescribed drugs by claims were Lamotrigine, Levetiracetam and Donepezil HCl.

How long has Alison Johnson Headley been practicing?

Alison Headley graduated from medical school in 2016, 10 years ago.

Does Alison Johnson Headley do research?

Dmand AI links 2 publications to Alison Headley, published from 2018 to 2019.

Who does Alison Johnson Headley publish with?

Alison Headley's most frequent co-authors are Christian Johann Camargo, MD (1 shared paper), Jerry Jeh Shih, MD (1 shared paper) and Xiaoyan Sun, MD (1 shared paper).

What insurance does Alison Johnson Headley accept?

Alison Headley is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

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