Alyssa Hammar, DO
Surgery Physician · Columbia, MO
Alyssa Hammar, DO is a surgery physician with a practice address in Columbia, Missouri, and NPI 1063144186, issued on Jun 28, 2022. Check the license (Missouri 2022024345, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Alyssa Hammar
- Credential
- DO
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 2022024345 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Hospital Dr, Columbia, MO 65212
- Phone
- (573) 884-2000
- Enumerated
- Jun 28, 2022
- Record last updated
- Jun 28, 2022
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 714 in Missouri → Look up another NPI →
Also registered at 1 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alyssa Hammar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2022024345Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average surgery physician in 2024
30 Medicare Part D claims for 24 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Oxycodone Hcl12 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: $137.01
1 payment: education; the largest payer was Medical Device Business Services, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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.
Alyssa Hammar among 714 surgery physician records in Missouri
Alyssa Hammar, DO is one of 714 surgery physician records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 89% of them.
- NPI issued2022 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
91 surgery physician records list a practice address in Columbia
They are 91 of the 6,004 NPPES records with a practice address in Columbia, and 714 surgery physician records in Missouri.
All 714 in Missouri → Every provider in Columbia → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Emily Albright, M.D.Columbia, MO 652121407942352
- Kevin Bartow, MDColumbia, MO 652121306043799
- Olivia Bolles, MDColumbia, MO 652121013178946
- John Brockland, MDColumbia, MO 652121609281153
- Dustin Christiansen, MDColumbia, MO 652121669567244
- Roger De La Torre, M.D.Columbia, MO 652121134115728
- Erica Ibendahl, M.D.Columbia, MO 652121134483514
- Amit Patel, MDColumbia, MO 652121578978029
Common questions
What is Alyssa Hammar, DO's NPI number?
Alyssa Hammar, DO's National Provider Identifier (NPI) is 1063144186, issued on Jun 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Alyssa Hammar, DO located?
The NPPES record lists a practice address at 1 Hospital Dr, Columbia, MO, 65212. Phone: (573) 884-2000. Providers update this record themselves, so call before visiting.
How can I verify Alyssa Hammar, DO's license?
NPPES lists Missouri license number 2022024345, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alyssa Hammar, DO prescribe under Medicare Part D?
In 2024, Alyssa Hammar, DO had 30 Medicare Part D claims for 24 beneficiaries; the average among surgery physician prescribers was 147. 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.