Dr. Jenna Donelle Gassman, DO
- Medicare services, 2024
- 442
- Medicare patients, 2024
- 134
- Part D claims, 2024
- 1,962
- MIPS score, 2024
- 85
- Hospital affiliations
- 4
- Practice address
- 1321 W 22nd St, Sioux Falls, SD 57105
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sanford Allergy and Immunology Clinic - HOPD
Acute Care Hospital outpatient department · Sioux Falls, South Dakota
Find Dr. Gassman'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. Jenna Donelle Gassman is an internist in Sioux Falls, South Dakota
Dr. Gassman practices at Sanford Allergy and Immunology Clinic - HOPD in Sioux Falls, South Dakota.
Dr. Gassman's NPI, 1124636543, was assigned on July 22, 2020. Dr. Gassman holds North Dakota license 14671.
- NPI
- 1124636543NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335595123
- NPI enumeration date
- July 22, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jenna Donelle Gassman practices at Sanford Allergy and Immunology Clinic - HOPD in Sioux Falls, South Dakota
Dr. Gassman's primary practice is Sanford Allergy and Immunology Clinic - HOPD, at 1321 W 22nd St, Sioux Falls, SD 57105.
- Sanford Allergy and Immunology Clinic - HOPD1321 W 22nd St, Sioux Falls, SD 57105
Source: Dmand AI Affiliation Data
Dr. Jenna Donelle Gassman is affiliated with 9 sites of care and 1 medical group
Dr. Gassman's primary practice is Sanford Allergy and Immunology Clinic - HOPD in Sioux Falls, South Dakota. Dr. Gassman is also affiliated with Avera McKennan Hospital & University Health Center. The medical group on file is Edith Sanford Breast Center Sioux Falls. Dmand AI also links Dr. Gassman to 3 more hospitals, 2 home health agencies, 1 dialysis center and 1 hospice, each named with a free account. Dr. Gassman's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jenna Donelle Gassman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gassman practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sanford Allergy and Immunology Clinic - HOPD | Available with a free account |
| +8 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jenna Donelle Gassman is one of 267 internists in South Dakota
Internal medicine is Dr. Gassman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gassman is licensed in North Dakota.
Specialties and state licenses
- Internal medicine, North DakotaPrimary
Internists near Dr. Gassman
Counts of internists 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. Jenna Donelle Gassman billed Medicare for 442 services in 2024
CMS data shows 442 Medicare services from Dr. Gassman across 4 procedure codes in 2024, for 134 Medicare patients. Medicare paid $21,815 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gassman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 652024: 310377%
- Other services
- 2023: 02024: 132
Dr. Gassman compared with the South Dakota median for internists, 2024
- Dr. Gassman
- South Dakota median
- Medicare services
- 442vs 54218% below
- Medicare patients
- 134vs 23643% below
- Part D claims
- 1,455vs 12411.7 times
Medians across 262 internists in South Dakota with Dmand AI profiles that report each measure.
Dr. Gassman'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jenna Donelle Gassman treated 134 Medicare patients in 2024, average age 73
CMS counts 134 Medicare patients who saw Dr. Gassman in 2024. The largest group is 65 to 74, with 56 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.67, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Gassman's median patient age at 73, with 75% women.
Dr. Gassman's Medicare patients by age, 2024
Dr. Gassman's Medicare patients by sex, 2024
- Women8765%
- Men4735%
Chronic conditions among Dr. Gassman's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis53%
- Ischemic heart disease37%
- Diabetes31%
- Mood disorders31%
- Depression30%
- Anxiety29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gassman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women75%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jenna Donelle Gassman wrote 1,962 Medicare Part D claims in 2024
In 2024, Dr. Gassman wrote 1,962 Medicare Part D claims for 250 patients. 92% of them were for generic drugs. CMS names the drug for 1,455 of them, across 49 drugs with 11 or more claims each, at $48,047 in total drug cost.
Dr. Gassman's Part D claims by kind of drug, 2024
- Generic1,801 claims92%
- Brand-name and other161 claims8%
Dr. Gassman'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. Gassman's Part D claims, 2024
- Opioids1%20 of 1,962 claims
- Antibiotics4%82 of 1,962 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Dr. Jenna Donelle Gassman scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Gassman for performance year 2024, reported as part of a group. Dr. Gassman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Gassman's MIPS scores, performance year 2024
- 85of 100Final score
- 78.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Dr. Jenna Donelle Gassman'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Jenna Donelle Gassman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jenna Donelle Gassman's NPI number?
Dr. Jenna Donelle Gassman's NPI number is 1124636543. It was assigned on July 22, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Jenna Donelle Gassman?
Dr. Jenna Donelle Gassman is an internist in Sioux Falls, South Dakota. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jenna Donelle Gassman practice?
Dr. Gassman practices at 1321 W 22nd St, Sioux Falls, SD 57105. Dr. Gassman's primary practice is Sanford Allergy and Immunology Clinic - HOPD in Sioux Falls, South Dakota. Dmand AI also links Dr. Gassman to 3 hospitals, 2 home health agencies, 1 dialysis center and 1 hospice.
What is Dr. Jenna Donelle Gassman's medical license number?
Dr. Gassman holds North Dakota license 14671.
Which hospitals is Dr. Jenna Donelle Gassman affiliated with?
Dr. Gassman is affiliated with Avera McKennan Hospital & University Health Center. Dmand AI links Dr. Gassman to 3 more hospitals.
What medical group is Dr. Jenna Donelle Gassman part of?
Dr. Gassman is linked to Edith Sanford Breast Center Sioux Falls.
Does Dr. Jenna Donelle Gassman accept Medicare?
Yes. CMS data shows Dr. Gassman billed Medicare for 442 services in 2024, and Dr. Gassman accepts Medicare assignment.
What is Dr. Jenna Donelle Gassman's MIPS score?
Dr. Gassman's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jenna Donelle Gassman see?
CMS counts 134 Medicare patients who saw Dr. Gassman in 2024, with an average age of 73.
What services does Dr. Jenna Donelle Gassman bill to Medicare?
In 2024, Dr. Gassman's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).
What drugs does Dr. Jenna Donelle Gassman prescribe most?
In 2024 Medicare Part D data, Dr. Gassman's most prescribed drugs by claims were Amlodipine Besylate, Rosuvastatin Calcium and Atorvastatin Calcium.
How long has Dr. Jenna Donelle Gassman been practicing?
Dr. Gassman graduated from medical school in 2020, 6 years ago.
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