NPPES file of Aug 9, 2026

Harcharan Singh

Allergy & Immunology Physician · Centerville, OH

Harcharan Singh is an allergy & immunology physician with a practice address in Centerville, Ohio, and NPI 1861484800, issued on Aug 16, 2005. Check the license on the State Medical Board of Ohio; 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
1861484800
Name
Harcharan Singh
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
214027 NY
Self-reported in NPPES; status is on the state search
Practice location
8419 Yankee Street, Centerville, OH 45458
Phone
(937) 297-8300
Enumerated
Aug 16, 2005
Record last updated
Jul 7, 2026
Fax
(937) 910-0900
Medicare enrollment
Enrolled (PECOS I20231213004085); accepts Medicare assignment
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 Harcharan Singh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of OhioCheck 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 Ohio license search

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97% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

22 Medicare Part D claims for 13 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D.

  1. Harcharan Singh22
  2. Specialty average741

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 2 group practices

  1. Premier Health Specialists IncDayton, OH
  2. Uvpc Specialists, Inc.Centerville, OH

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

Harcharan Singh among 132 allergy & immunology physician records in Ohio

Harcharan Singh is one of 132 allergy & immunology physician records with a practice address in Ohio. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1984 · median 2006 among the 93 with a school on file
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Ohio

There are 132 allergy & immunology physician records in Ohio.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Arturo Bonnin, MDCenterville, OH 454581790761823
  2. Charles Debrosse, M.D.Dayton, OH 454581700043155
  3. Thad Francis Ocampo, M.D.Wpafb, OH 454331710184759
  4. William Parker, MDBeavercreek, OH 454311780665430
  5. Roua Azmeh, MDDayton, OH 454291285920744
  6. Dana Esham, MDChillicothe, OH 456011710181375
  7. Christopher Clark, M.D.Gallipolis, OH 456311639123995
  8. Patricia Ghory, MDCincinnati, OH 452551649298829

Common questions

What is Harcharan Singh's NPI number?

Harcharan Singh's National Provider Identifier (NPI) is 1861484800, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Harcharan Singh located?

The NPPES record lists a practice address at 8419 Yankee Street, Centerville, OH, 45458. Phone: (937) 297-8300. Providers update this record themselves, so call before visiting.

How can I verify Harcharan Singh's license?

Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Harcharan Singh prescribe under Medicare Part D?

In 2024, Harcharan Singh had 22 Medicare Part D claims for 13 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.