NPPES file of Aug 9, 2026

Atisak Sapying, M.D.

Family Medicine Physician · Belvidere, IL

Atisak Sapying, M.D. is a family medicine physician with a practice address in Belvidere, Illinois, and NPI 1982694980, issued on Oct 21, 2005. Check the license (Illinois 036079150, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1982694980
Name
Atisak Sapying
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
036079150 IL
Self-reported in NPPES; status is on the state search
Practice location
2170 Pearl St, Belvidere, IL 61008
Phone
(815) 547-5461
Enumerated
Oct 21, 2005
Record last updated
Oct 1, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
036079150 IL
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2170 Pearl St

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

  1. Gail Brick, ANPFamily Nurse Practitioner1679724561
  2. David Pocock, M.D.Family Medicine Physician1447240445
  3. Julie Zaiser, NPNurse Practitioner1972580660

Verify Atisak Sapying in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036079150
    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 Illinois license search

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50% fewer Medicare Part D claims than the average family medicine physician in 2024

1,764 Medicare Part D claims for 252 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Atisak Sapying1,764
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate117 claims
  2. Lisinopril101 claims
  3. Atorvastatin Calcium100 claims
  4. Metformin Hcl100 claims
  5. Hydrochlorothiazide75 claims
  6. Metoprolol Succinate67 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.

Atisak Sapying among 6,215 family medicine physician records in Illinois

Atisak Sapying, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2015 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 family medicine physician records list a practice address in Belvidere

They are 20 of the 194 NPPES records with a practice address in Belvidere, and 6,215 family medicine physician records in Illinois.

The 8 family medicine physician records with the nearest ZIP codes

  1. Shin Chen, MDBelvidere, IL 610081437139896
  2. Karen Englund, MDBelvidere, IL 610081407872591
  3. Stephanie Gorham, MDBelvidere, IL 610081023239258
  4. Neal Kellenberger, MDBelvidere, IL 610081427210319
  5. Mohammed Khan, MDBelvidere, IL 610081679703797
  6. Cassandra Lopez, MDBelvidere, IL 610081619125317
  7. Therese Lucietto-Sieradzki, M.D.Belvidere, IL 610081699708636
  8. Clayton Malaker, M.D.Belvidere, IL 610081144221961

Common questions

What is Atisak Sapying, M.D.'s NPI number?

Atisak Sapying, M.D.'s National Provider Identifier (NPI) is 1982694980, issued on Oct 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Atisak Sapying, M.D. located?

The NPPES record lists a practice address at 2170 Pearl St, Belvidere, IL, 61008. Phone: (815) 547-5461. Providers update this record themselves, so call before visiting.

How can I verify Atisak Sapying, M.D.'s license?

NPPES lists Illinois license number 036079150, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Atisak Sapying, M.D. prescribe under Medicare Part D?

In 2024, Atisak Sapying, M.D. had 1,764 Medicare Part D claims for 252 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.