Christopher O'Halloran, D.O.
Family Medicine Physician · Huntsville, AL
Christopher O'Halloran, D.O. is a family medicine physician with a practice address in Huntsville, Alabama, and NPI 1538123187, issued on Apr 12, 2006. Check the license (Alabama DO784, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Christopher O'Halloran
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DO784 AL
Self-reported in NPPES; status is on the state search - Practice location
- 810 Franklin St SE, Huntsville, AL 35801
- Phone
- (256) 551-6503
- Enumerated
- Apr 12, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (256) 533-8935
- Medicare enrollment
- Enrolled (PECOS I20040701000212); accepts Medicare assignment
- Medical or professional school
- Uniformed Services Uhs Fe Hebert School Of Med, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,996 in Alabama → Look up another NPI →
Also registered at 810 Franklin St SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephanie Mott, CRNPNurse Practitioner1366633893
Verify Christopher O'Halloran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license DO784Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% more Medicare Part D claims than the average family medicine physician in 2024
6,697 Medicare Part D claims for 429 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 59 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium370 claims
- Atorvastatin Calcium336 claims
- Amlodipine Besylate311 claims
- Levothyroxine Sodium304 claims
- Lisinopril236 claims
- Pravastatin Sodium171 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $2,755.40
178 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Creekside Family PracticeHuntsville, AL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher O'Halloran among 1,996 family medicine physician records in Alabama
Christopher O'Halloran, D.O. is one of 1,996 family medicine physician records with a practice address in Alabama. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 52% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2001 · median 2005 among the 1,346 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
168 family medicine physician records list a practice address in Huntsville
They are 168 of the 5,555 NPPES records with a practice address in Huntsville, and 1,996 family medicine physician records in Alabama.
All 1,996 in Alabama → Every provider in Huntsville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Blankenship, DOHuntsville, AL 358011013994342
- David Calderwood, MDHuntsville, AL 358011235110586
- Michael Carter, M.D.Huntsville, AL 358011427045152
- James Chambers, M.D.Huntsville, AL 358011598765588
- Norman Ervin, M. D.Huntsville, AL 358011821089012
- Tobin Fisher, MDHuntsville, AL 358011447231014
- Forest Herrington, MDHuntsville, AL 358011417938085
- Herbert Holdsambeck, MDHuntsville, AL 358011649251216
Common questions
What is Christopher O'Halloran, D.O.'s NPI number?
Christopher O'Halloran, D.O.'s National Provider Identifier (NPI) is 1538123187, issued on Apr 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher O'Halloran, D.O. located?
The NPPES record lists a practice address at 810 Franklin St SE, Huntsville, AL, 35801. Phone: (256) 551-6503. Providers update this record themselves, so call before visiting.
How can I verify Christopher O'Halloran, D.O.'s license?
NPPES lists Alabama license number DO784, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher O'Halloran, D.O. prescribe under Medicare Part D?
In 2024, Christopher O'Halloran, D.O. had 6,697 Medicare Part D claims for 429 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.