Dr. Heidi Maree Schaefer, MD

  • Nashville, TN
  • Nephrologist
NPI1326135443PAC ID1153392485
Medicare services, 2024
577
Medicare patients, 2024
270
Part D claims, 2024
3,926
Publications
1
Hospital affiliations
5
Practice address
1211 Medical Center Drive, Nashville, TN 37232
Practice phone
Call (615) 322-3454
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Vanderbilt University Medical Center

Hospital · Nashville, Tennessee

See all 7 affiliations

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Dr. Heidi Maree Schaefer is a nephrologist in Nashville, Tennessee

Dr. Schaefer practices at Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center.

Dr. Schaefer's NPI, 1326135443, was assigned on October 9, 2006. Dr. Schaefer graduated from Cincinnati College of Medicine and Surgery in 1998. Dr. Schaefer holds Tennessee license 38577.

NPI and contact details
Medicare PAC ID
1153392485
NPI enumeration date
October 9, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(615) 322-3454
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
54
Medical school graduation
1998

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Heidi Maree Schaefer practices at Vanderbilt University Medical Center in Nashville, Tennessee

Dr. Schaefer's primary practice is Vanderbilt University Medical Center, at 1211 Medical Center Drive, Nashville, TN 37232 in Davidson County. The practice phone is (615) 322-3454.

Source: Dmand AI Affiliation Data

Dr. Heidi Maree Schaefer is affiliated with 6 sites of care and 1 medical group

Dr. Schaefer's primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. Dr. Schaefer is also affiliated with Huntsville Hospital. The medical group on file is Vanderbilt University Medical Center. Dmand AI also links Dr. Schaefer to 3 more hospitals and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Dr. Schaefer

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Heidi Maree Schaefer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schaefer practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Vanderbilt University Medical CenterAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Heidi Maree Schaefer is one of 230 nephrologists in Tennessee

Nephrology is Dr. Schaefer's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Schaefer is licensed in Tennessee.

Specialties and state licenses

  • Nephrology, TennesseePrimaryLicense 38577 · taxonomy 207RN0300X

Nephrologists near Dr. Schaefer

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

Dr. Heidi Maree Schaefer billed Medicare for 577 services in 2024

CMS data shows 577 Medicare services from Dr. Schaefer across 6 procedure codes in 2024, for 270 Medicare patients. Medicare paid $51,851 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024577
Medicare patients270
Paid by Medicare$51,851
Procedure codes6

Dr. Schaefer's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 6652024: 57713%

Dr. Schaefer compared with the Tennessee median for nephrologists, 2024

  • Dr. Schaefer
  • Tennessee median
Medicare services
577vs 1,18751% below
Medicare patients
270vs 37328% below
Part D claims
3,480vs 8534.1 times

Medians across 228 nephrologists in Tennessee with Dmand AI profiles that report each measure.

Dr. Schaefer'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.

See all procedures by Dr. Schaefer

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Heidi Maree Schaefer treated 270 Medicare patients in 2024, average age 58

CMS counts 270 Medicare patients who saw Dr. Schaefer in 2024. The largest group is under 65, with 161 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 25% are also on Medicaid. Their average risk score is 4.57, 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. Schaefer's median patient age at 57, with 45% women.

Medicare patients, 2024270
Average age58
Average risk score4.57
Also on Medicaid25%

Dr. Schaefer's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Schaefer's Medicare patients by sex, 2024

  • Women12245%
  • Men14855%

Chronic conditions among Dr. Schaefer's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes56%
  5. Ischemic heart disease33%
  6. Arthritis31%
  7. Mood disorders31%
  8. Depression29%

Share of Medicare patients with each condition. A patient can have several.

Dr. Schaefer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 57

Patient panel by sex, all payers

  • Women45%
  • Men55%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Heidi Maree Schaefer wrote 3,926 Medicare Part D claims in 2024

In 2024, Dr. Schaefer wrote 3,926 Medicare Part D claims for 324 patients. 94% of them were for generic drugs. CMS names the drug for 3,480 of them, across 68 drugs with 11 or more claims each, at $126,671 in total drug cost. In 2023, CMS named 4,160 claims across 69 drugs.

Part D claims, 20243,926
Drugs named by CMS68
Total drug cost$126,671
Part D patients324

Dr. Schaefer's Part D claims by kind of drug, 2024

  • Generic3,703 claims94%
  • Brand-name and other223 claims6%

Dr. Schaefer'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. Schaefer's Part D claims, 2024

  • Antibiotics3%134 of 3,926 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: 4,1602024: 3,48016%

Drugs named by CMS: 68 in 2024, 69 in 2023.

See all prescribing by Dr. Schaefer

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. Heidi Maree Schaefer offers telehealth to Medicare patients

Dr. Schaefer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Schaefer as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Heidi Maree Schaefer has 1 publication on record

Dmand AI links 1 paper to Dr. Schaefer in 2012. Dr. Schaefer's most frequent co-authors are Matthew James Day, DO and Eric L. Wallace.

Papers1

Dr. Schaefer's most frequent co-authors

Recent publications by Dr. Schaefer

See all 1 publications and co-authors

See who Dr. Schaefer researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Schaefer works with, so you can find a warm path to the right nephrologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Heidi Maree Schaefer received $48 in industry payments from 2016 to 2023

CMS Open Payments shows 5 general payments to Dr. Schaefer from 3 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 66% of the total. Novo Nordisk Inc paid the most, $20.

General payments to Dr. Schaefer by program year, 2016 to 2023

General payments to Dr. Schaefer by kind, 2016 to 2023

$48in total
  • Food and beverage$3266%
  • Education$1634%

Companies that paid Dr. Schaefer the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Schaefer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Heidi Maree Schaefer graduated from Cincinnati College of Medicine and Surgery

Dr. Schaefer graduated from Cincinnati College of Medicine and Surgery in 1998.

  1. Medical schoolCincinnati College of Medicine and Surgery

Source: Dmand AI Professional Profile Data

Sources for Dr. Heidi Maree Schaefer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Heidi Maree Schaefer

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. Heidi Maree Schaefer's NPI number?

Dr. Heidi Maree Schaefer's NPI number is 1326135443. It was assigned on October 9, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Heidi Maree Schaefer?

Dr. Heidi Maree Schaefer is a nephrologist in Nashville, Tennessee. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Heidi Maree Schaefer practice?

Dr. Schaefer practices at 1211 Medical Center Drive, Nashville, TN 37232. Dr. Schaefer's primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. Dmand AI also links Dr. Schaefer to 3 hospitals and 1 group practice or clinic.

What is Dr. Heidi Maree Schaefer's office phone number?

The practice phone on file for Dr. Schaefer is (615) 322-3454.

What is Dr. Heidi Maree Schaefer's medical license number?

Dr. Schaefer holds Tennessee license 38577.

Which hospitals is Dr. Heidi Maree Schaefer affiliated with?

Dr. Schaefer practices at Vanderbilt University Medical Center in Nashville, Tennessee. Dr. Schaefer is also affiliated with Huntsville Hospital. Dmand AI links Dr. Schaefer to 3 more hospitals.

What medical group is Dr. Heidi Maree Schaefer part of?

Dr. Schaefer is linked to Vanderbilt University Medical Center.

Does Dr. Heidi Maree Schaefer accept Medicare?

Yes. CMS data shows Dr. Schaefer billed Medicare for 577 services in 2024, and Dr. Schaefer accepts Medicare assignment.

Does Dr. Heidi Maree Schaefer offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Schaefer as offering telehealth services.

How many Medicare patients does Dr. Heidi Maree Schaefer see?

CMS counts 270 Medicare patients who saw Dr. Schaefer in 2024, with an average age of 58.

Show 7 more questionsShow fewer questions

What services does Dr. Heidi Maree Schaefer bill to Medicare?

In 2024, Dr. Schaefer's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99233) and hospital inpatient care (99232).

Where did Dr. Heidi Maree Schaefer go to medical school?

Dr. Schaefer graduated from Cincinnati College of Medicine and Surgery in 1998.

What drugs does Dr. Heidi Maree Schaefer prescribe most?

In 2024 Medicare Part D data, Dr. Schaefer's most prescribed drugs by claims were Prednisone, Omeprazole and Carvedilol.

Has Dr. Heidi Maree Schaefer received payments from drug or device companies?

CMS Open Payments shows $48 in general payments to Dr. Schaefer from 3 companies from 2016 to 2023. The largest total came from Novo Nordisk Inc.

How long has Dr. Heidi Maree Schaefer been practicing?

Dr. Schaefer graduated from medical school in 1998, 28 years ago.

Does Dr. Heidi Maree Schaefer do research?

Dmand AI links 1 publication to Dr. Schaefer.

Who does Dr. Heidi Maree Schaefer publish with?

Dr. Schaefer's most frequent co-authors are Matthew James Day, DO (1 shared paper) and Eric L. Wallace (1 shared paper).

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