Dr. Alyssa Hammar, DO
- Part D claims, 2024
- 30
- Publications
- 1
- Industry payments
- $463
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 7850 S Hardy Dr, Tempe, AZ 85284
- Practice phone
- Call (573) 814-7100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Option Care
Tempe, Arizona
Find Dr. Hammar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Alyssa Hammar is a general surgeon in Tempe, Arizona
Dr. Hammar practices at Option Care in Tempe, Arizona.
Dr. Hammar's NPI, 1063144186, was assigned on June 28, 2022. Dr. Hammar holds Missouri license 2022024345.
- NPI
- 1063144186NPI Registry (opens in a new tab)
- NPI enumeration date
- June 28, 2022
- NPI status
- Active
- Practice phone
- (573) 814-7100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Alyssa Hammar practices at Option Care in Tempe, Arizona
Dr. Hammar's primary practice is Option Care, at 7850 S Hardy Dr, Tempe, AZ 85284 in Maricopa County. The practice phone is (573) 814-7100.
- Option Care7850 S Hardy Dr, Tempe, AZ 85284 · Maricopa CountyPhone(573) 814-7100
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alyssa Hammar is affiliated with 1 site of care
Dr. Hammar's primary practice is Option Care in Tempe, Arizona.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Alyssa Hammar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hammar practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Option Care | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alyssa Hammar is one of 617 general surgeons in Arizona
Surgery is Dr. Hammar's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hammar is licensed in Missouri.
Specialties and state licenses
- Surgery, MissouriPrimary
General surgeons near Dr. Hammar
Counts of general surgeons 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
Dr. Alyssa Hammar wrote 30 Medicare Part D claims in 2024
In 2024, Dr. Hammar wrote 30 Medicare Part D claims for 24 patients. 93% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $36 in total drug cost. In 2023, CMS named 32 claims across 2 drugs.
Dr. Hammar's Part D claims by kind of drug, 2024
- Generic28 claims93%
- Brand-name and other2 claims7%
Dr. Hammar'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 Dr. Hammar's Part D claims, 2024
- Opioids53%16 of 30 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: 322024: 1263%
Drugs named by CMS: 1 in 2024, 2 in 2023.
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
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Dr. Alyssa Hammar has 1 publication on record
Dmand AI links 1 paper to Dr. Hammar in 2024. Dr. Hammar's most frequent co-authors are Milot Thaqi, MD and Andrew Allen Wheeler, MD.
Dr. Hammar's most frequent co-authors
Recent publications by Dr. Hammar
See who Dr. Hammar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hammar works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alyssa Hammar received $463 in industry payments from 2022 to 2024
CMS Open Payments shows 3 general payments to Dr. Hammar from 2 drug and device companies from 2022 to 2024. Education make up the largest share, 96% of the total. Medical Device Business Services, Inc. paid the most, $442.
General payments to Dr. Hammar by program year, 2022 to 2024
General payments to Dr. Hammar by kind, 2022 to 2024
- Education$44296%
- Food and beverage$214%
Companies that paid Dr. Hammar the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Alyssa Hammar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Part D prescribing | Medicare 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Alyssa Hammar
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What is Dr. Alyssa Hammar's NPI number?
Dr. Alyssa Hammar's NPI number is 1063144186. It was assigned on June 28, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Alyssa Hammar?
Dr. Alyssa Hammar is a general surgeon in Tempe, Arizona. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Alyssa Hammar practice?
Dr. Hammar practices at 7850 S Hardy Dr, Tempe, AZ 85284. Dr. Hammar's primary practice is Option Care in Tempe, Arizona.
What is Dr. Alyssa Hammar's office phone number?
The practice phone on file for Dr. Hammar is (573) 814-7100.
What is Dr. Alyssa Hammar's medical license number?
Dr. Hammar holds Missouri license 2022024345.
What drugs does Dr. Alyssa Hammar prescribe most?
In 2024 Medicare Part D data, Dr. Hammar's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Alyssa Hammar received payments from drug or device companies?
CMS Open Payments shows $463 in general payments to Dr. Hammar from 2 companies from 2022 to 2024. The largest total came from Medical Device Business Services, Inc.
How long has Dr. Alyssa Hammar been practicing?
Dr. Hammar's NPI was assigned in 2022.
Does Dr. Alyssa Hammar do research?
Dmand AI links 1 publication to Dr. Hammar.
Who does Dr. Alyssa Hammar publish with?
Dr. Hammar's most frequent co-authors are Milot Thaqi, MD (1 shared paper) and Andrew Allen Wheeler, MD (1 shared paper).
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