Ashley M. Buchanan

  • Santa Maria, CA
  • Pediatrician
NPI1932589736PAC ID9234421827
Medicare services, 2024
653
Medicare patients, 2024
257
Part D claims, 2024
160
Publications
1
MIPS score, 2024
50
Practice address
1400 E Church St, Santa Maria, CA 93454
Practice phone
Call (805) 739-3100
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Dignity Health - Marian Regional Medical Center

Hospital · Santa Maria, California

See all 6 affiliations

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Ashley M. Buchanan is a pediatrician in Santa Maria, California

Ashley Buchanan practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health.

Ashley Buchanan's NPI, 1932589736, was assigned on June 5, 2015. Ashley Buchanan graduated from Rush Medical College in 2015. Ashley Buchanan holds California license A161690.

NPI and contact details
Medicare PAC ID
9234421827
NPI enumeration date
June 5, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(805) 739-3100
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
37
Medical school graduation
2015

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

Ashley M. Buchanan practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California

Ashley Buchanan's primary practice is Dignity Health - Marian Regional Medical Center, at 1400 E Church St, Santa Maria, CA 93454 in Santa Barbara County. The practice phone is (805) 739-3100.

Source: Dmand AI Affiliation Data

Ashley M. Buchanan is affiliated with 4 sites of care and 2 medical groups

Ashley Buchanan's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. The medical group on file is Pacific Central Coast Health Centers Medical Group. Dmand AI also links Ashley Buchanan to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 6 affiliations for Ashley Buchanan

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Ashley M. Buchanan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Ashley Buchanan practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dignity Health - Marian Regional Medical CenterAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Ashley M. Buchanan is one of 8,236 pediatricians in California

Pediatrics is Ashley Buchanan's primary specialty in the NPI Registry, under taxonomy code 208000000X. Ashley Buchanan is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Ashley Buchanan's licenses on file in 2 states: California and Illinois.

Specialties and state licenses

  • Pediatrics, CaliforniaPrimaryLicense A161690 · 2019 to 2027 · taxonomy 208000000X
  • Internal medicine, IllinoisLicense 125067280 · 2018 to 2019 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acute diabetes, acute respiratory failure, collapsed lung, electrolyte disorders, eyelid inflammation, gastrointestinal inflammation, lung disease: COPD, asthma or bronchitis and parathyroid gland disorder among the conditions Ashley Buchanan treats.

Pediatricians near Ashley Buchanan

Counts of pediatricians 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

Ashley M. Buchanan billed Medicare for 653 services in 2024

CMS data shows 653 Medicare services from Ashley Buchanan across 6 procedure codes in 2024, for 257 Medicare patients. Medicare paid $57,940 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024653
Medicare patients257
Paid by Medicare$57,940
Procedure codes6

Ashley Buchanan's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 8182024: 65320%

Ashley Buchanan compared with the California median for pediatricians, 2024

  • Ashley Buchanan
  • California median
Medicare services
653vs 709.3 times
Medicare patients
257vs 624.1 times
Part D claims
44vs 222.0 times

Medians across 807 pediatricians in California with Dmand AI profiles that report each measure.

Ashley Buchanan'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

Ashley M. Buchanan treated 257 Medicare patients in 2024, average age 78

CMS counts 257 Medicare patients who saw Ashley Buchanan in 2024. The largest group is 75 to 84, with 94 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.10, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Ashley Buchanan's median patient age at 62, with 50% women.

Medicare patients, 2024257
Average age78
Average risk score2.10
Also on Medicaid34%

Ashley Buchanan's Medicare patients by age, 2024

Ashley Buchanan's Medicare patients by sex, 2024

  • Women13954%
  • Men11846%

Chronic conditions among Ashley Buchanan's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis55%
  4. Chronic kidney disease45%
  5. Diabetes45%
  6. Heart failure42%
  7. Mood disorders42%
  8. Anxiety40%

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

Ashley Buchanan's patients across all payers

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

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women50%
  • Men50%

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

Ashley M. Buchanan wrote 160 Medicare Part D claims in 2024

In 2024, Ashley Buchanan wrote 160 Medicare Part D claims for 78 patients. 91% of them were for generic drugs. CMS names the drug for 44 of them, across 3 drugs with 11 or more claims each, at $171 in total drug cost. In 2023, CMS named 26 claims across 2 drugs.

Part D claims, 2024160
Drugs named by CMS3
Total drug cost$171
Part D patients78

Ashley Buchanan's Part D claims by kind of drug, 2024

  • Generic145 claims91%
  • Brand-name15 claims9%

Ashley Buchanan'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 Ashley Buchanan's Part D claims, 2024

  • Antibiotics29%46 of 160 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: 262024: 4469%

Drugs named by CMS: 3 in 2024, 2 in 2023.

See all prescribing by Ashley Buchanan

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

Ashley M. Buchanan scored 50 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 50 out of 100 for Ashley Buchanan for performance year 2024, reported as part of a group. Ashley Buchanan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Ashley Buchanan's MIPS scores, performance year 2024

  • 50of 100Final score
  • 29.5of 100Quality
  • 0of 100Improvement Activities
  • 80of 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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Ashley M. Buchanan has 1 publication on record

Dmand AI links 1 paper to Ashley Buchanan in 2016. Ashley Buchanan's most frequent co-authors are Elizabeth Charlotte Christian, MD, Vikram Nandhan, MD and Beverley Robin, MD.

Papers1

Ashley Buchanan's most frequent co-authors

Recent publications by Ashley Buchanan

See all 1 publications and co-authors

See who Ashley Buchanan researches with

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

How network discovery works

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

Ashley M. Buchanan received $17 in industry payments in 2021

CMS Open Payments shows 1 general payment to Ashley Buchanan from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $17.

Companies that paid Ashley Buchanan the most, 2021 to 2021

Share is of all general payments to this clinician.

See all payments to Ashley Buchanan

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

Ashley M. Buchanan graduated from Rush Medical College

Ashley Buchanan graduated from Rush Medical College in 2015.

  1. Medical schoolRush Medical College
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in pediatricsAmerican Board of Pediatrics

Source: Dmand AI Professional Profile Data

Ashley M. Buchanan accepts plans from 6 insurance carriers

Ashley Buchanan is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Ashley Buchanan accepts, by number of carriers

  1. Medicare6
  2. PPO5
  3. HMO2
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Ashley M. Buchanan'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand 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
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 Ashley M. Buchanan

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

What is Ashley M. Buchanan's NPI number?

Ashley M. Buchanan's NPI number is 1932589736. It was assigned on June 5, 2015, and it is active in the NPI Registry.

What does Ashley M. Buchanan specialize in?

Ashley M. Buchanan is a pediatrician in Santa Maria, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).

Where does Ashley M. Buchanan practice?

Ashley Buchanan practices at 1400 E Church St, Santa Maria, CA 93454. Ashley Buchanan's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. Dmand AI also links Ashley Buchanan to 1 hospital, 2 group practices and clinics and 1 medical group.

What is Ashley M. Buchanan's office phone number?

The practice phone on file for Ashley Buchanan is (805) 739-3100.

What is Ashley M. Buchanan's medical license number?

Ashley Buchanan holds California license A161690, one of the licenses on file in 2 states.

Which states has Ashley M. Buchanan been licensed in?

Dmand AI has state licenses on file for Ashley Buchanan in California (2019 to 2027) and Illinois (2018 to 2019).

Which hospitals is Ashley M. Buchanan affiliated with?

Ashley Buchanan practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California. Dmand AI links Ashley Buchanan to 1 more hospital.

What medical group is Ashley M. Buchanan part of?

Ashley Buchanan is linked to Pacific Central Coast Health Centers Medical Group. Dmand AI links Ashley Buchanan to 1 more medical group.

Does Ashley M. Buchanan accept Medicare?

Yes. CMS data shows Ashley Buchanan billed Medicare for 653 services in 2024, and Ashley Buchanan accepts Medicare assignment.

What is Ashley M. Buchanan's MIPS score?

Ashley Buchanan's MIPS final score for performance year 2024 is 50 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Ashley M. Buchanan see?

CMS counts 257 Medicare patients who saw Ashley Buchanan in 2024, with an average age of 78.

Is Ashley M. Buchanan board certified?

Yes. Ashley Buchanan is board certified in internal medicine by the American Board of Internal Medicine.

What services does Ashley M. Buchanan bill to Medicare?

In 2024, Ashley Buchanan's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).

Where did Ashley M. Buchanan go to medical school?

Ashley Buchanan graduated from Rush Medical College in 2015.

What drugs does Ashley M. Buchanan prescribe most?

In 2024 Medicare Part D data, Ashley Buchanan's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Prednisone and Furosemide.

Has Ashley M. Buchanan received payments from drug or device companies?

CMS Open Payments shows $17 in general payments to Ashley Buchanan from 1 company from 2021 to 2021. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Ashley M. Buchanan been practicing?

Ashley Buchanan graduated from medical school in 2015, 11 years ago.

Does Ashley M. Buchanan do research?

Dmand AI links 1 publication to Ashley Buchanan.

Who does Ashley M. Buchanan publish with?

Ashley Buchanan's most frequent co-authors are Elizabeth Charlotte Christian, MD (1 shared paper), Vikram Nandhan, MD (1 shared paper) and Beverley Robin, MD (1 shared paper).

What insurance does Ashley M. Buchanan accept?

Ashley Buchanan is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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