NPPES file of Aug 9, 2026

Abby Renee Lochmann-Bailkey, M.D.

Gastroenterology Physician · Madison, WI

Abby Renee Lochmann-Bailkey, M.D. is a gastroenterology physician with a practice address in Madison, Wisconsin, and NPI 1366886806, issued on Apr 27, 2013. Check the license (Wisconsin 63264-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366886806
Name
Abby Renee Lochmann-Bailkey
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
63264-20 WI
Self-reported in NPPES; status is on the state search
Practice location
700 S Park St, Madison, WI 53715
Phone
(608) 260-2900
Enumerated
Apr 27, 2013
Record last updated
Oct 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(608) 260-2977
Medicaid ID
1366886806 WI
Medicare enrollment
Enrolled (PECOS I20181204000802); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2013
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 700 S Park St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Axel AdamsEmergency Medicine Physician1366905192
  2. Muhammad Akbar, MDHospitalist Physician1720096753
  3. Ibrahim Al-Sanouri, MDPulmonary Disease Physician1356452833
  4. Clark Albert, MDAnesthesiology Physician1457300634
  5. Michael Allan, MDGastroenterology Physician1558300822
  6. Shane Allen, M.D.Emergency Medicine Physician1649478231

Verify Abby Renee Lochmann-Bailkey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 63264-20
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

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4% fewer Medicare Part D claims than the average gastroenterology physician in 2024

779 Medicare Part D claims for 401 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Abby Lochmann-Bailkey779
  2. Specialty average811

Most prescribed

  1. Gavilyte-C234 claims
  2. Omeprazole93 claims
  3. Gavilyte-G46 claims
  4. Budesonide Dr28 claims
  5. Colestipol Hcl22 claims
  6. Dicyclomine Hcl20 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Dean Health Systems IncMadison, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Abby Renee Lochmann-Bailkey among 340 gastroenterology physician records in Wisconsin

Abby Renee Lochmann-Bailkey, M.D. is one of 340 gastroenterology physician records with a practice address in Wisconsin. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 79% of them.

  • NPI issued2013 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2013 · median 2003 among the 239 with a school on file
  • Record last updated2021 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Wisconsin

There are 340 gastroenterology physician records in Wisconsin.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Michael Allan, MDMadison, WI 537151558300822
  2. Siobhan Byrne, M.D.Madison, WI 537151417915836
  3. Abigail Christiansen, MDMadison, WI 537151427003227
  4. Sigurdur Einarsson, MDMadison, WI 537151245206317
  5. Jason Gonzaga, M.D.Madison, WI 537151710026430
  6. Gary Griglione, MDMadison, WI 537151013931203
  7. John Hamilton, MDMadison, WI 537151659310969
  8. Susan Lepinski, MDMadison, WI 537151780650713

Common questions

What is Abby Renee Lochmann-Bailkey, M.D.'s NPI number?

Abby Renee Lochmann-Bailkey, M.D.'s National Provider Identifier (NPI) is 1366886806, issued on Apr 27, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Abby Renee Lochmann-Bailkey, M.D. located?

The NPPES record lists a practice address at 700 S Park St, Madison, WI, 53715. Phone: (608) 260-2900. Providers update this record themselves, so call before visiting.

How can I verify Abby Renee Lochmann-Bailkey, M.D.'s license?

NPPES lists Wisconsin license number 63264-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Abby Renee Lochmann-Bailkey, M.D. prescribe under Medicare Part D?

In 2024, Abby Renee Lochmann-Bailkey, M.D. had 779 Medicare Part D claims for 401 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.