Tammy J. Vanderstelt
- Medicare patients, 2024
- 192
- Part D claims, 2024
- 12,124
- Hospital affiliations
- 2
- Industry payments
- $136
- Medical group
- 1
- Practice address
- 1717 Shaffer St, Kalamazoo, MI 49048
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bariatric Center - Ascension Borgess Bariatric Center - HOPD
Acute Care Hospital outpatient department · Kalamazoo, Michigan
Find Tammy Vanderstelt'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.
Tammy J. Vanderstelt is a nurse practitioner in Kalamazoo, Michigan
Tammy Vanderstelt practices at Bariatric Center - Ascension Borgess Bariatric Center - HOPD in Kalamazoo, Michigan.
Tammy Vanderstelt's NPI, 1588775365, was assigned on August 31, 2006. Tammy Vanderstelt holds Michigan license 4704196839.
- NPI
- 1588775365NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840219408
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Tammy J. Vanderstelt practices at Bariatric Center - Ascension Borgess Bariatric Center - HOPD in Kalamazoo, Michigan
Tammy Vanderstelt's primary practice is Bariatric Center - Ascension Borgess Bariatric Center - HOPD, at 1717 Shaffer St, Kalamazoo, MI 49048.
- Bariatric Center - Ascension Borgess Bariatric Center - HOPD1717 Shaffer St, Kalamazoo, MI 49048
Source: Dmand AI Affiliation Data
Tammy J. Vanderstelt is affiliated with 5 sites of care and 1 medical group
Tammy Vanderstelt's primary practice is Bariatric Center - Ascension Borgess Bariatric Center - HOPD in Kalamazoo, Michigan. Tammy Vanderstelt is also affiliated with Bronson Methodist Hospital. The medical group on file is Beacon Portage Family Medicine. Dmand AI also links Tammy Vanderstelt to 1 more hospital, 1 group practice or clinic and 1 hospice, each named with a free account. Tammy Vanderstelt's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Tammy J. Vanderstelt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Tammy Vanderstelt practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bariatric Center - Ascension Borgess Bariatric Center - HOPD | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Tammy J. Vanderstelt is one of 2,742 nurse practitioners in Michigan
Nurse practitioner is Tammy Vanderstelt's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Tammy Vanderstelt is licensed in Michigan.
Specialties and state licenses
- Nurse practitioner, MichiganPrimary
Nurse practitioners near Tammy Vanderstelt
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
Tammy J. Vanderstelt treated 192 Medicare patients in 2024, average age 78
CMS counts 192 Medicare patients who saw Tammy Vanderstelt in 2024. The largest group is 75 to 84, with 65 patients. 75% of them have high blood pressure, and 59% have high cholesterol. 56% are also on Medicaid. Their average risk score is 2.50, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Tammy Vanderstelt's median patient age at 77, with 58% women.
Tammy Vanderstelt's Medicare patients by age, 2024
Tammy Vanderstelt's Medicare patients by sex, 2024
- Women9449%
- Men9851%
Chronic conditions among Tammy Vanderstelt's Medicare patients, 2024
- High blood pressure75%
- High cholesterol59%
- Anxiety55%
- Depression55%
- Mood disorders55%
- Alzheimer's and dementia52%
- Arthritis47%
- Heart failure42%
Share of Medicare patients with each condition. A patient can have several.
Tammy Vanderstelt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Tammy J. Vanderstelt wrote 12,124 Medicare Part D claims in 2024
In 2024, Tammy Vanderstelt wrote 12,124 Medicare Part D claims for 272 patients. 84% of them were for generic drugs.
Tammy Vanderstelt's Part D claims by kind of drug, 2024
- Generic10,243 claims84%
- Brand-name1,862 claims15%
- Other19 claims0%
Drug classes CMS tracks in Tammy Vanderstelt's Part D claims, 2024
- Opioids5%579 of 12,124 claims
- Antibiotics2%279 of 12,124 claims
- Antipsychotics, patients 65 and over4%450 of 12,124 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 Tammy J. Vanderstelt takes part in Medicare
Tammy Vanderstelt 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)
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Tammy J. Vanderstelt received $136 in industry payments in 2025
CMS Open Payments shows 2 general payments to Tammy Vanderstelt from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Neurocrine BioSciences, Inc. paid the most, $113.
Companies that paid Tammy Vanderstelt 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 Tammy J. Vanderstelt'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 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 Tammy J. Vanderstelt
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Tammy J. Vanderstelt's NPI number?
Tammy J. Vanderstelt's NPI number is 1588775365. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What does Tammy J. Vanderstelt specialize in?
Tammy J. Vanderstelt is a nurse practitioner in Kalamazoo, Michigan. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Tammy J. Vanderstelt practice?
Tammy Vanderstelt practices at 1717 Shaffer St, Kalamazoo, MI 49048. Tammy Vanderstelt's primary practice is Bariatric Center - Ascension Borgess Bariatric Center - HOPD in Kalamazoo, Michigan. Dmand AI also links Tammy Vanderstelt to 1 hospital, 1 group practice or clinic and 1 hospice.
What is Tammy J. Vanderstelt's medical license number?
Tammy Vanderstelt holds Michigan license 4704196839.
Which hospitals is Tammy J. Vanderstelt affiliated with?
Tammy Vanderstelt is affiliated with Bronson Methodist Hospital. Dmand AI links Tammy Vanderstelt to 1 more hospital.
What medical group is Tammy J. Vanderstelt part of?
Tammy Vanderstelt is linked to Beacon Portage Family Medicine.
Does Tammy J. Vanderstelt accept Medicare?
Yes. CMS lists Tammy Vanderstelt as accepting Medicare assignment.
How many Medicare patients does Tammy J. Vanderstelt see?
CMS counts 192 Medicare patients who saw Tammy Vanderstelt in 2024, with an average age of 78.
Has Tammy J. Vanderstelt received payments from drug or device companies?
CMS Open Payments shows $136 in general payments to Tammy Vanderstelt from 2 companies from 2025 to 2025. The largest total came from Neurocrine BioSciences, Inc.
How long has Tammy J. Vanderstelt been practicing?
Tammy Vanderstelt graduated from medical school in 2005, 21 years ago.
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