Mary E. Tahnk-Johnson
- Medicare services, 2024
- 856
- Medicare patients, 2024
- 135
- Part D claims, 2024
- 1,749
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 6200 Shingle Creek Pkwy, Minneapolis, MN 55430
- Practice phone
- Call (763) 420-2804
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Maple Grove Dialysis Unit
Minneapolis, Minnesota
Find Mary Tahnk-Johnson'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.
Mary E. Tahnk-Johnson is a nephrologist in Minneapolis, Minnesota
Mary Tahnk-Johnson practices at Maple Grove Dialysis Unit in Minneapolis, Minnesota.
Mary Tahnk-Johnson's NPI, 1548247547, was assigned on December 30, 2005. Mary Tahnk-Johnson graduated from University of Minnesota Medical School in 1988. Mary Tahnk-Johnson holds Minnesota license 32922.
- NPI
- 1548247547NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648189589
- NPI enumeration date
- December 30, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (763) 420-2804
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary E. Tahnk-Johnson practices at Maple Grove Dialysis Unit in Minneapolis, Minnesota
Mary Tahnk-Johnson's primary practice is Maple Grove Dialysis Unit, at 6200 Shingle Creek Pkwy, Minneapolis, MN 55430 in Hennepin County. The practice phone is (763) 420-2804.
- Maple Grove Dialysis Unit6200 Shingle Creek Pkwy, Minneapolis, MN 55430 · Hennepin CountyPhone(763) 420-2804
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mary E. Tahnk-Johnson is affiliated with 4 sites of care and 1 medical group
Mary Tahnk-Johnson's primary practice is Maple Grove Dialysis Unit in Minneapolis, Minnesota. Mary Tahnk-Johnson is also affiliated with Methodist Hospital. The medical group on file is Park Nicollet Clinic. Dmand AI also links Mary Tahnk-Johnson to 1 more dialysis center and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mary E. Tahnk-Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Tahnk-Johnson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Maple Grove Dialysis Unit | Available with a free account |
| +3 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Mary E. Tahnk-Johnson is one of 213 nephrologists in Minnesota
Nephrology is Mary Tahnk-Johnson's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Mary Tahnk-Johnson is licensed in Minnesota.
Specialties and state licenses
- Nephrology, MinnesotaPrimary
Nephrologists near Mary Tahnk-Johnson
Counts of nephrologists 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
Mary E. Tahnk-Johnson billed Medicare for 856 services in 2024
CMS data shows 856 Medicare services from Mary Tahnk-Johnson across 15 procedure codes in 2024, for 135 Medicare patients. Medicare paid $50,848 for them. Every service was in an office.
Mary Tahnk-Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 3482024: 3583%
- Surgery
- 2023: 2122024: 17717%
- Tests and treatments
- 2023: 1662024: 14314%
- Office and hospital visits
- 2023: 1342024: 1238%
- Other services
- 2023: 02024: 55
Mary Tahnk-Johnson compared with the Minnesota median for nephrologists, 2024
- Mary Tahnk-Johnson
- Minnesota median
- Medicare services
- 856vs 49374% above
- Medicare patients
- 135vs 18527% below
- Part D claims
- 1,485vs 3724.0 times
Medians across 200 nephrologists in Minnesota with Dmand AI profiles that report each measure.
Mary Tahnk-Johnson'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.
Need commercial claims for Mary Tahnk-Johnson?
Medicare shows one payer. Book a meeting to get commercial claims data for Mary Tahnk-Johnson and other nephrologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mary E. Tahnk-Johnson treated 135 Medicare patients in 2024, average age 73
CMS counts 135 Medicare patients who saw Mary Tahnk-Johnson in 2024. The largest group is 65 to 74, with 49 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 15% are also on Medicaid. Their average risk score is 2.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mary Tahnk-Johnson's median patient age at 71, with 51% women.
Mary Tahnk-Johnson's Medicare patients by age, 2024
Mary Tahnk-Johnson's Medicare patients by sex, 2024
- Women7556%
- Men6044%
Chronic conditions among Mary Tahnk-Johnson's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes50%
- Arthritis47%
- Ischemic heart disease33%
- Mood disorders33%
- Depression29%
Share of Medicare patients with each condition. A patient can have several.
Mary Tahnk-Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mary E. Tahnk-Johnson wrote 1,749 Medicare Part D claims in 2024
In 2024, Mary Tahnk-Johnson wrote 1,749 Medicare Part D claims for 214 patients. 92% of them were for generic drugs. CMS names the drug for 1,485 of them, across 37 drugs with 11 or more claims each, at $95,503 in total drug cost. In 2023, CMS named 1,630 claims across 42 drugs.
Mary Tahnk-Johnson's Part D claims by kind of drug, 2024
- Generic1,603 claims92%
- Brand-name146 claims8%
Mary Tahnk-Johnson'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 Mary Tahnk-Johnson's Part D claims, 2024
- Antibiotics2%36 of 1,749 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: 1,6302024: 1,4859%
Drugs named by CMS: 37 in 2024, 42 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
How Mary E. Tahnk-Johnson takes part in Medicare
Mary Tahnk-Johnson 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
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Mary E. Tahnk-Johnson graduated from University of Minnesota Medical School
Mary Tahnk-Johnson graduated from University of Minnesota Medical School in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mary E. Tahnk-Johnson'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 DataDmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Mary E. Tahnk-Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary E. Tahnk-Johnson's NPI number?
Mary E. Tahnk-Johnson's NPI number is 1548247547. It was assigned on December 30, 2005, and it is active in the NPI Registry.
What does Mary E. Tahnk-Johnson specialize in?
Mary E. Tahnk-Johnson is a nephrologist in Minneapolis, Minnesota. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Mary E. Tahnk-Johnson practice?
Mary Tahnk-Johnson practices at 6200 Shingle Creek Pkwy, Minneapolis, MN 55430. Mary Tahnk-Johnson's primary practice is Maple Grove Dialysis Unit in Minneapolis, Minnesota. Dmand AI also links Mary Tahnk-Johnson to 1 dialysis center and 1 group practice or clinic.
What is Mary E. Tahnk-Johnson's office phone number?
The practice phone on file for Mary Tahnk-Johnson is (763) 420-2804.
What is Mary E. Tahnk-Johnson's medical license number?
Mary Tahnk-Johnson holds Minnesota license 32922.
Which hospitals is Mary E. Tahnk-Johnson affiliated with?
Mary Tahnk-Johnson is affiliated with Methodist Hospital.
What medical group is Mary E. Tahnk-Johnson part of?
Mary Tahnk-Johnson is linked to Park Nicollet Clinic.
Does Mary E. Tahnk-Johnson accept Medicare?
Yes. CMS data shows Mary Tahnk-Johnson billed Medicare for 856 services in 2024, and Mary Tahnk-Johnson accepts Medicare assignment.
How many Medicare patients does Mary E. Tahnk-Johnson see?
CMS counts 135 Medicare patients who saw Mary Tahnk-Johnson in 2024, with an average age of 73.
What services does Mary E. Tahnk-Johnson bill to Medicare?
In 2024, Mary Tahnk-Johnson's most billed Medicare services were surgery: heart and blood vessels (36415), dialysis (90960) and lab and pathology test (80069).
Show 3 more questionsShow fewer questions
Where did Mary E. Tahnk-Johnson go to medical school?
Mary Tahnk-Johnson graduated from University of Minnesota Medical School in 1988.
What drugs does Mary E. Tahnk-Johnson prescribe most?
In 2024 Medicare Part D data, Mary Tahnk-Johnson's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Furosemide.
How long has Mary E. Tahnk-Johnson been practicing?
Mary Tahnk-Johnson graduated from medical school in 1988, 38 years ago.
Selling to nephrology practices?
See nephrologists in Minnesota by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card