NPPES file of Aug 9, 2026

Walter J. Duffy, MD

Psychiatry Physician · Lincoln, NE

Walter J. Duffy, MD is a psychiatry physician with a practice address in Lincoln, Nebraska, and NPI 1093853368, issued on Feb 1, 2007. Check the license (Nebraska 18400, as entered in NPPES) on the Nebraska Board of Medicine and Surgery; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093853368
Name
Walter J. Duffy
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
18400 NE
Self-reported in NPPES; status is on the state search
Practice location
8101 O St, Lincoln, NE 68510
Phone
(402) 476-6060
Enumerated
Feb 1, 2007
Record last updated
Sep 12, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(402) 476-6809
Medicaid ID
10025071300 NE
Medicare enrollment
Enrolled (PECOS I20041015000286); accepts Medicare assignment
Medical or professional school
Vanderbilt University School Of Medicine, 1989
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 8101 O St

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

  1. Shane Crockett, LMHPMental Health Counselor1134147044
  2. Julie Dublinske, MA, LMHP, CPC, PLADCMental Health Counselor1467722678
  3. Megan Failor, LMHP, CPCMental Health Counselor1265813455
  4. Nicholas Guenzel, APRN-NPPsychiatric/Mental Health Nurse Practitioner1477843530
  5. Paul Hayes, MDObstetrics & Gynecology Physician1447352190
  6. Deanne Isaacson, P.A. C.Physician Assistant1437199262

Verify Walter J. Duffy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNebraska Board of Medicine and Surgery
    Search for license 18400
    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 Nebraska license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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11.1 times the Medicare Part D claims of the average psychiatry physician in 2024

11,054 Medicare Part D claims for 473 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Walter Duffy11,054
  2. Specialty average1,000

Most prescribed

  1. Bupropion Xl525 claims
  2. Lorazepam492 claims
  3. Quetiapine Fumarate451 claims
  4. Alprazolam442 claims
  5. Lamotrigine420 claims
  6. Duloxetine Hcl419 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.

The MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $8,336.38

132 payments; by number, the most common kind was food and beverage; the largest payer was LivaNova USA, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Walter Duffy$8,336.38
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Alivation Health LLCLincoln, NE

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

Walter J. Duffy among 260 psychiatry physician records in Nebraska

Walter J. Duffy, MD is one of 260 psychiatry physician records with a practice address in Nebraska. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 32% of them.

  • NPI issued2007 · 32% of these records are older, 55% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated1989 · median 2006 among the 113 with a school on file
  • Record last updated2008 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Nebraska practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Nebraska

There are 260 psychiatry physician records in Nebraska.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Kathryn Borman, D.O., M.P.H.Lincoln, NE 685101962695585
  2. Courtney Colville, MDLincoln, NE 685101396866133
  3. Soa Yuc Lee, M.D.Lincoln, NE 685101114023306
  4. Andi Ngo, MD, PHARMDLincoln, NE 685101902421100
  5. Kelli Bremer, M.D.Lincoln, NE 685121902894082
  6. Danielle Buda, M.D.Lincoln, NE 685121205944949
  7. Glen Christensen, M.D.Lincoln, NE 685121598847667
  8. Ismatt Niazi, M.D.Lincoln, NE 685081821452970

Common questions

What is Walter J. Duffy, MD's NPI number?

Walter J. Duffy, MD's National Provider Identifier (NPI) is 1093853368, issued on Feb 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Walter J. Duffy, MD located?

The NPPES record lists a practice address at 8101 O St, Lincoln, NE, 68510. Phone: (402) 476-6060. Providers update this record themselves, so call before visiting.

How can I verify Walter J. Duffy, MD's license?

NPPES lists Nebraska license number 18400, as entered by the provider. Search the Nebraska Board of Medicine and Surgery at https://www.nebraska.gov/LISSearch/search.cgi. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Walter J. Duffy, MD prescribe under Medicare Part D?

In 2024, Walter J. Duffy, MD had 11,054 Medicare Part D claims for 473 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Walter J. Duffy, MD's MIPS final score?

The 2023 MIPS final score is 0 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.