NPPES file of Aug 9, 2026

John A. Damergis, M.D.

Sleep Medicine (Psychiatry & Neurology) Physician · Bloomington, MN

John A. Damergis, M.D. is a sleep medicine (psychiatry & neurology) physician with a practice address in Bloomington, Minnesota, and NPI 1205004249, issued on Feb 12, 2008. Check the license (Minnesota 49503, as entered in NPPES) on the Minnesota Board of Medical Practice; 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
1205004249
Name
John A. Damergis
Credential
M.D.
Primary taxonomy
Sleep Medicine (Psychiatry & Neurology) Physician 2084S0012X
License number
49503 MN
Self-reported in NPPES; status is on the state search
Practice location
3601 Minnesota Dr Ste 200, Bloomington, MN 55435
Phone
(612) 879-1000
Enumerated
Feb 12, 2008
Record last updated
Aug 7, 2023
Fax
(612) 879-9116
Medicare enrollment
Enrolled (PECOS I20080715000361); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 2003
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 3601 Minnesota Dr Ste 200

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

  1. Amy Catalfamo, MDNeurology with Special Qualifications in Child Neurology Physician1396044806
  2. Roshni Cherucheril, PA-CPhysician Assistant1962942342
  3. Mary Chiasson, D.O.Neurology Physician1235133265
  4. Susanne Cohen, PH.D.Clinical Neuropsychologist1548303316
  5. Jesse Corry, MDNeurology Physician1215964499
  6. Thanh Dang, MDNeurology Physician1164403994

Verify John A. Damergis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 49503
    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 Minnesota 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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3.7 times the Medicare Part D claims of the average sleep medicine (psychiatry & neurology) physician in 2024

2,396 Medicare Part D claims for 487 beneficiaries, against an average of 655 among the 377 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 70 claims were for opioids.

  1. John Damergis2,396
  2. Specialty average655

Most prescribed

  1. Gabapentin305 claims
  2. Trazodone Hcl167 claims
  3. Clonazepam157 claims
  4. Modafinil150 claims
  5. Pramipexole Dihydrochloride146 claims
  6. Belsomra117 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 practice group's MIPS final score for 2023 (Medicare payment program): 83.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score81.8
  2. Costout of 100 · 30%63.3
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Noran Neurological Clinic, P.A.Minneapolis, MN

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

John A. Damergis among 19 sleep medicine (psychiatry & neurology) physician records in Minnesota

John A. Damergis, M.D. is one of 19 sleep medicine (psychiatry & neurology) physician records with a practice address in Minnesota. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 42% of them.

  • NPI issued2008 · 42% of these records are older, 42% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 84% of these records are
  • Graduated2003 · median 2006 among the 16 with a school on file
  • Record last updated2023 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084S0012X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Psychiatry & Neurology) Physician providers in Minnesota

There are 19 sleep medicine (psychiatry & neurology) physician records in Minnesota.

The 8 sleep medicine (psychiatry & neurology) physician records with the nearest ZIP codes

  1. Rakesh John, MDEdina, MN 554351487800249
  2. Yumna Saeed, M.D.Bloomington, MN 554351982970463
  3. Tacjana Friday, MDBlaine, MN 554341407981210
  4. Tanaporn Rasameesoraj, M.D.St Louis Park, MN 554261649534496
  5. Thomas Hurwitz, M.D.Minneapolis, MN 554541396778403
  6. Erin Golden, MDMinneapolis, MN 554151841584091
  7. Ranji Varghese, MDMinneapolis, MN 554151255304770
  8. Eve Rogers, M.D.Maple Grove, MN 553691568539153

Common questions

What is John A. Damergis, M.D.'s NPI number?

John A. Damergis, M.D.'s National Provider Identifier (NPI) is 1205004249, issued on Feb 12, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John A. Damergis, M.D. located?

The NPPES record lists a practice address at 3601 Minnesota Dr Ste 200, Bloomington, MN, 55435. Phone: (612) 879-1000. Providers update this record themselves, so call before visiting.

How can I verify John A. Damergis, M.D.'s license?

NPPES lists Minnesota license number 49503, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John A. Damergis, M.D. prescribe under Medicare Part D?

In 2024, John A. Damergis, M.D. had 2,396 Medicare Part D claims for 487 beneficiaries; the average among sleep medicine (psychiatry & neurology) physician prescribers was 655. Part D covers Medicare prescriptions only.

What is John A. Damergis, M.D.'s MIPS final score?

The 2023 MIPS final score is 83.5 of 100, reported for the practice group. 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.