NPPES file of Aug 9, 2026

Jansi Lakshmi Willoughby, M.D.

Pulmonary Disease Physician · Roseville, MI

Jansi Lakshmi Willoughby, M.D. is a pulmonary disease physician with a practice address in Roseville, Michigan, and NPI 1235577669, issued on Jun 7, 2013. Check the license (Michigan 4301116853, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1235577669
Name
Jansi Lakshmi Willoughby
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
4301116853 MI
Self-reported in NPPES; status is on the state search
Practice location
25689 Kelly RD Ste 100, Roseville, MI 48066
Phone
(586) 445-5995
Enumerated
Jun 7, 2013
Record last updated
Mar 11, 2025
Fax
(877) 673-3562
Medicare enrollment
Enrolled (PECOS I20200713001949); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 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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Verify Jansi Lakshmi Willoughby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301116853
    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 Michigan license search

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91% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

130 Medicare Part D claims for 31 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Jansi Willoughby130
  2. Specialty average1,425

Most prescribed

  1. Dextroamphetamine-Amphetamine26 claims
  2. Gabapentin12 claims
  3. Zolpidem Tartrate12 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.

Industry payments in 2024: $97.32

5 payments; by number, the most common kind was food and beverage; the largest payer was Actelion Pharmaceuticals US, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jansi Willoughby$97.32
  2. Specialty average$5,159.88

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. Pulmonary And Critical Care Associates PCShelby Township, MI

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

Jansi Lakshmi Willoughby among 526 pulmonary disease physician records in Michigan

Jansi Lakshmi Willoughby, M.D. is one of 526 pulmonary disease physician records with a practice address in Michigan. 86% 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 74% of them.

  • NPI issued2013 · 74% of these records are older, 24% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2013 · median 2004 among the 389 with a school on file
  • Record last updated2025 · 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 207RP1001X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Michigan

There are 526 pulmonary disease physician records in Michigan.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. William Hanna, MDRoseville, MI 480661740246222
  2. Robert Marchese, MDRoseville, MI 480661043290232
  3. Fadi-Jean Saad, M.D.Roseville, MI 480661174573810
  4. Gary Berg, D.O.Madison Heights, MI 480711083698997
  5. Mihai Iliesiu, MDMadison Heights, MI 480711467682443
  6. Michael Laffer, D.O.Madison Heights, MI 480711639153497
  7. Syed Ali, MDPort Huron, MI 480601588664775
  8. Vasken Artinian, M.D.Port Huron, MI 480601922074863

Common questions

What is Jansi Lakshmi Willoughby, M.D.'s NPI number?

Jansi Lakshmi Willoughby, M.D.'s National Provider Identifier (NPI) is 1235577669, issued on Jun 7, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Jansi Lakshmi Willoughby, M.D. located?

The NPPES record lists a practice address at 25689 Kelly RD Ste 100, Roseville, MI, 48066. Phone: (586) 445-5995. Providers update this record themselves, so call before visiting.

How can I verify Jansi Lakshmi Willoughby, M.D.'s license?

NPPES lists Michigan license number 4301116853, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jansi Lakshmi Willoughby, M.D. prescribe under Medicare Part D?

In 2024, Jansi Lakshmi Willoughby, M.D. had 130 Medicare Part D claims for 31 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.