NPPES file of Aug 9, 2026

Ihsan Ul Haq, M.D.

Hematology & Oncology Physician · Findlay, OH

Ihsan Ul Haq, M.D. is a hematology & oncology physician with a practice address in Findlay, Ohio, and NPI 1891789335, issued on Sep 9, 2005. Check the license (Ohio 35080907, as entered in NPPES) 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
1891789335
Name
Ihsan Ul Haq
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
35080907 OH
4301072513 MI
Self-reported in NPPES; status is on the state search
Practice location
3949 North Main Street, Findlay, OH 45840
Phone
(419) 429-1300
Enumerated
Sep 9, 2005
Record last updated
Jan 8, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(419) 429-1304
Medicaid IDs
4778583 MI
2143746 OH
Medicare enrollment
Enrolled (PECOS I20200514002333); accepts Medicare assignment
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 3949 North Main Street

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

  1. Sharon Cole, M.D.Hematology & Oncology Physician1942293873

Verify Ihsan Ul Haq in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35080907
    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 Ohio 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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34% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,179 Medicare Part D claims for 237 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 50 claims were for opioids.

  1. Ihsan Haq1,179
  2. Specialty average877

Most prescribed

  1. Anastrozole113 claims
  2. Letrozole72 claims
  3. Levothyroxine Sodium62 claims
  4. Dexamethasone49 claims
  5. Prednisone47 claims
  6. Imbruvica44 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: $1,655.82

52 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ihsan Haq$1,655.82
  2. Specialty average$7,481.41

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

One hospital affiliation

  1. Samaritan Medical CenterWatertown, NY · Acute Care Hospitals2 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Ihsan Ul Haq among 513 hematology & oncology physician records in Ohio

Ihsan Ul Haq, M.D. is one of 513 hematology & oncology 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, 84% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1979 · median 2001 among the 369 with a school on file
  • Record last updated2016 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Ohio

There are 513 hematology & oncology physician records in Ohio.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Apoorva Chawla, M.D.Findlay, OH 458401710114145
  2. Sharon Cole, M.D.Findlay, OH 458401942293873
  3. Britt Olmsted, M.D.Findlay, OH 458401629211933
  4. Kevin Shannon, M.D.Findlay, OH 458401881697894
  5. Derek Thomas, M.D.Findlay, OH 458401508187683
  6. Henry Gerad, MDLima, OH 458051922008457
  7. Jennifer Hatton, M.D.Lima, OH 458051386931434
  8. David Powell, DOLima, OH 458051538153689

Common questions

What is Ihsan Ul Haq, M.D.'s NPI number?

Ihsan Ul Haq, M.D.'s National Provider Identifier (NPI) is 1891789335, issued on Sep 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ihsan Ul Haq, M.D. located?

The NPPES record lists a practice address at 3949 North Main Street, Findlay, OH, 45840. Phone: (419) 429-1300. Providers update this record themselves, so call before visiting.

How can I verify Ihsan Ul Haq, M.D.'s license?

NPPES lists Ohio license number 35080907, as entered by the provider. 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 Ihsan Ul Haq, M.D. prescribe under Medicare Part D?

In 2024, Ihsan Ul Haq, M.D. had 1,179 Medicare Part D claims for 237 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.