Sandra Messmer, NP
- Medicare patients, 2024
- 166
- Part D claims, 2024
- 380
- Hospital affiliations
- 1
- Industry payments
- $45
- Medical groups
- 2
- Practice address
- 1055 North Curtis Road, Boise, ID 83706
- Practice phone
- Call (208) 367-2121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Sandra Messmer'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.
Sandra Messmer is a nurse practitioner in Boise, Idaho
Sandra Messmer practices at Saint Alphonsus Regional Medical Center in Boise, Idaho, part of Trinity Health.
Sandra Messmer's NPI, 1891273652, was assigned on August 3, 2018. Sandra Messmer holds Idaho license 59692.
- NPI
- 1891273652NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810241643
- NPI enumeration date
- August 3, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (208) 367-2121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Sandra Messmer practices at Saint Alphonsus Regional Medical Center in Boise, Idaho
Sandra Messmer's primary practice is Saint Alphonsus Regional Medical Center, at 1055 North Curtis Road, Boise, ID 83706 in Ada County. The practice phone is (208) 367-2121.
- Saint Alphonsus Regional Medical Center1055 North Curtis Road, Boise, ID 83706 · Ada CountyPhone(208) 367-2121
Source: Dmand AI Affiliation Data
Sandra Messmer is affiliated with 2 sites of care and 2 medical groups
Sandra Messmer's primary practice is Saint Alphonsus Regional Medical Center in Boise, Idaho, part of Trinity Health. The medical group on file is Saint Alphonsus Regional Medical Center. Dmand AI also links Sandra Messmer to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Sandra Messmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sandra Messmer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Alphonsus Regional Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Sandra Messmer is one of 510 nurse practitioners in Idaho
Nurse practitioner is Sandra Messmer's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Dmand AI has Sandra Messmer's licenses on file in 2 states: Idaho and Missouri.
Specialties and state licenses
- Nurse practitioner, IdahoPrimary
- Family nurse practitioner, Missouri
Nurse practitioners near Sandra Messmer
Counts of nurse practitioners 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
Sandra Messmer treated 166 Medicare patients in 2024, average age 71
CMS counts 166 Medicare patients who saw Sandra Messmer in 2024. The largest group is 65 to 74, with 75 patients. 60% of them have high blood pressure, and 53% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Sandra Messmer's median patient age at 56, with 60% women.
Sandra Messmer's Medicare patients by age, 2024
Sandra Messmer's Medicare patients by sex, 2024
- Women10664%
- Men6036%
Chronic conditions among Sandra Messmer's Medicare patients, 2024
- High blood pressure60%
- High cholesterol53%
- Arthritis43%
- Anxiety27%
- Mood disorders26%
- Chronic kidney disease23%
- Depression23%
- Diabetes20%
Share of Medicare patients with each condition. A patient can have several.
Sandra Messmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Sandra Messmer wrote 380 Medicare Part D claims in 2024
In 2024, Sandra Messmer wrote 380 Medicare Part D claims for 292 patients. 88% of them were for generic drugs.
Sandra Messmer's Part D claims by kind of drug, 2024
- Generic336 claims88%
- Brand-name and other44 claims12%
Drug classes CMS tracks in Sandra Messmer's Part D claims, 2024
- Antibiotics49%185 of 380 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Sandra Messmer takes part in Medicare
Sandra Messmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Sandra Messmer received $45 in industry payments in 2025
CMS Open Payments shows 2 general payments to Sandra Messmer from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $45.
Companies that paid Sandra Messmer the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Sandra Messmer'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Sandra Messmer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Sandra Messmer's NPI number?
Sandra Messmer's NPI number is 1891273652. It was assigned on August 3, 2018, and it is active in the NPI Registry.
What does Sandra Messmer specialize in?
Sandra Messmer is a nurse practitioner in Boise, Idaho. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Sandra Messmer practice?
Sandra Messmer practices at 1055 North Curtis Road, Boise, ID 83706. Sandra Messmer's primary practice is Saint Alphonsus Regional Medical Center in Boise, Idaho, part of Trinity Health. Dmand AI also links Sandra Messmer to 1 group practice or clinic and 1 medical group.
What is Sandra Messmer's office phone number?
The practice phone on file for Sandra Messmer is (208) 367-2121.
What is Sandra Messmer's medical license number?
Sandra Messmer holds Idaho license 59692, one of the licenses on file in 2 states.
Which states has Sandra Messmer been licensed in?
Dmand AI has state licenses on file for Sandra Messmer in Idaho and Missouri.
Which hospitals is Sandra Messmer affiliated with?
Sandra Messmer practices at Saint Alphonsus Regional Medical Center in Boise, Idaho.
What medical group is Sandra Messmer part of?
Sandra Messmer is linked to Saint Alphonsus Regional Medical Center. Dmand AI links Sandra Messmer to 1 more medical group.
Does Sandra Messmer accept Medicare?
Yes. CMS lists Sandra Messmer as accepting Medicare assignment.
How many Medicare patients does Sandra Messmer see?
CMS counts 166 Medicare patients who saw Sandra Messmer in 2024, with an average age of 71.
Has Sandra Messmer received payments from drug or device companies?
CMS Open Payments shows $45 in general payments to Sandra Messmer from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Sandra Messmer been practicing?
Sandra Messmer graduated from medical school in 2018, 8 years ago.
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