Christina Buchanan

  • Fullerton, CA
  • OB-GYN
NPI1750818357PAC ID2668875519
Medicare services, 2024
32
Medicare patients, 2024
40
Part D claims, 2024
111
Publications
1
Hospital affiliations
1
Practice address
101 Laguna Rd, Fullerton, CA 92835
Practice phone
Call (714) 449-4900
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Providence Medical Foundation

Fullerton, California

See all 4 affiliations

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Christina Buchanan is an OB-GYN in Fullerton, California

Christina Buchanan practices at Providence Medical Foundation in Fullerton, California.

Christina Buchanan's NPI, 1750818357, was assigned on May 15, 2017. Christina Buchanan graduated from Georgetown University School Of Medicine in 2017. Christina Buchanan holds California license A171955.

NPI and contact details
Medicare PAC ID
2668875519
NPI enumeration date
May 15, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(714) 449-4900
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
35
Medical school graduation
2017

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

Christina Buchanan practices at Providence Medical Foundation in Fullerton, California

Christina Buchanan's primary practice is Providence Medical Foundation, at 101 Laguna Rd, Fullerton, CA 92835 in Orange County. The practice phone is (714) 449-4900.

  • Providence Medical Foundation
    101 Laguna Rd, Fullerton, CA 92835 · Orange CountyPhone(714) 449-4900

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

Christina Buchanan is affiliated with 3 sites of care and 1 medical group

Christina Buchanan's primary practice is Providence Medical Foundation in Fullerton, California. Christina Buchanan is also affiliated with Providence St. Jude Medical Center. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Christina Buchanan to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Christina Buchanan

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

Dmand AI tracks the EHR system at Christina Buchanan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Christina Buchanan practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Providence Medical FoundationAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Christina Buchanan is one of 4,642 OB-GYNs in California

Obstetrics and gynecology is Christina Buchanan's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Christina Buchanan is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Christina Buchanan is licensed in California.

Specialties and state licenses

  • Obstetrics and gynecology, CaliforniaPrimaryLicense A171955 · 2021 to 2027 · taxonomy 207V00000X

Clinical focus

Dmand AI lists menopause and ovarian cyst among the conditions Christina Buchanan treats.

OB-GYNs near Christina Buchanan

Counts of OB-GYNs 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

Christina Buchanan billed Medicare for 32 services in 2024

CMS data shows 32 Medicare services from Christina Buchanan across 2 procedure codes in 2024, for 40 Medicare patients. Medicare paid $1,923 for them. Every service was in an office.

Medicare services, 202432
Medicare patients40
Paid by Medicare$1,923
Procedure codes2

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

  • 2023
  • 2024
Office and hospital visits
2023: 02024: 17
Other services
2023: 142024: 157%

Christina Buchanan compared with the California median for OB-GYNs, 2024

  • Christina Buchanan
  • California median
Medicare services
32vs 5845% below
Medicare patients
40vs 5223% below
Part D claims
64vs 3583% above

Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.

Christina 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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Medicare shows one payer. Book a meeting to get commercial claims data for Christina Buchanan and other OB-GYNs in California.

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

Christina Buchanan treated 40 Medicare patients in 2024, average age 73

CMS counts 40 Medicare patients who saw Christina Buchanan in 2024. The largest group is 65 to 74, with 24 patients. 73% of them have high cholesterol, and 55% have arthritis. Their average risk score is 1.02, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Christina Buchanan's median patient age at 36, with 99% women.

Medicare patients, 202440
Average age73
Average risk score1.02

Christina Buchanan's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Christina Buchanan's Medicare patients, 2024

  1. High cholesterol73%
  2. Arthritis55%
  3. High blood pressure48%
  4. Osteoporosis45%

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

Christina 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 36

Patient panel by sex, all payers

  • Women99%
  • Men0%

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

Christina Buchanan wrote 111 Medicare Part D claims in 2024

In 2024, Christina Buchanan wrote 111 Medicare Part D claims for 34 patients. 87% of them were for generic drugs. CMS names the drug for 64 of them, across 3 drugs with 11 or more claims each, at $3,050 in total drug cost. In 2023, CMS named 12 claims across 1 drug.

Part D claims, 2024111
Drugs named by CMS3
Total drug cost$3,050
Part D patients34

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

  • Generic97 claims87%
  • Brand-name14 claims13%

Christina 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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 122024: 64433%

Drugs named by CMS: 3 in 2024, 1 in 2023.

See all prescribing by Christina 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

How Christina Buchanan takes part in Medicare

Christina Buchanan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Christina Buchanan has 1 publication on record

Dmand AI links 1 paper to Christina Buchanan in 2022. Christina Buchanan's most frequent co-authors are Sheree Kuo, MD and Men-Jean Lee, MD.

Papers1

Christina Buchanan's most frequent co-authors

Recent publications by Christina Buchanan

See all 1 publications and co-authors

See who Christina Buchanan researches with

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

How network discovery works

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

Christina Buchanan received $102 in industry payments from 2023 to 2025

CMS Open Payments shows 5 general payments to Christina Buchanan from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $60.

General payments to Christina Buchanan by program year, 2023 to 2025

Companies that paid Christina Buchanan the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Christina Buchanan

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

Christina Buchanan graduated from Georgetown University School Of Medicine

Christina Buchanan graduated from Georgetown University School Of Medicine in 2017.

  1. Medical schoolGeorgetown University School Of Medicine
  2. Board certified in obstetrics & gynecologyAmerican Board of Obstetrics and Gynecology

Source: Dmand AI Professional Profile Data

Christina Buchanan accepts plans from 12 insurance carriers

Christina Buchanan is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. 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
  • +4 more carriersWith a free account

Plan types Christina Buchanan accepts, by number of carriers

  1. Medicare8
  2. PPO8
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Christina 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 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 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)Doctors and Clinicians Utilization Data (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 Christina 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 Christina Buchanan's NPI number?

Christina Buchanan's NPI number is 1750818357. It was assigned on May 15, 2017, and it is active in the NPI Registry.

What does Christina Buchanan specialize in?

Christina Buchanan is an OB-GYN in Fullerton, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Christina Buchanan practice?

Christina Buchanan practices at 101 Laguna Rd, Fullerton, CA 92835. Christina Buchanan's primary practice is Providence Medical Foundation in Fullerton, California. Dmand AI also links Christina Buchanan to 1 group practice or clinic.

What is Christina Buchanan's office phone number?

The practice phone on file for Christina Buchanan is (714) 449-4900.

What is Christina Buchanan's medical license number?

Christina Buchanan holds California license A171955.

Which hospitals is Christina Buchanan affiliated with?

Christina Buchanan is affiliated with Providence St. Jude Medical Center.

What medical group is Christina Buchanan part of?

Christina Buchanan is linked to St. Jude Heritage Medical Group.

Does Christina Buchanan accept Medicare?

Yes. CMS data shows Christina Buchanan billed Medicare for 32 services in 2024, and Christina Buchanan accepts Medicare assignment.

How many Medicare patients does Christina Buchanan see?

CMS counts 40 Medicare patients who saw Christina Buchanan in 2024, with an average age of 73.

Is Christina Buchanan board certified?

Yes. Christina Buchanan is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.

Show 8 more questionsShow fewer questions

What services does Christina Buchanan bill to Medicare?

In 2024, Christina Buchanan's most billed Medicare services were office visit, established patient (99213) and medicare service (G0101).

Where did Christina Buchanan go to medical school?

Christina Buchanan graduated from Georgetown University School Of Medicine in 2017.

What drugs does Christina Buchanan prescribe most?

In 2024 Medicare Part D data, Christina Buchanan's most prescribed drugs by claims were Estradiol, Progesterone and Estradiol (Twice Weekly).

Has Christina Buchanan received payments from drug or device companies?

CMS Open Payments shows $102 in general payments to Christina Buchanan from 2 companies from 2023 to 2025. The largest total came from Hologic Inc.

How long has Christina Buchanan been practicing?

Christina Buchanan graduated from medical school in 2017, 9 years ago.

Does Christina Buchanan do research?

Dmand AI links 1 publication to Christina Buchanan.

Who does Christina Buchanan publish with?

Christina Buchanan's most frequent co-authors are Sheree Kuo, MD (1 shared paper) and Men-Jean Lee, MD (1 shared paper).

What insurance does Christina Buchanan accept?

Christina Buchanan is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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