NPPES file of Aug 9, 2026

Assem Houssein, M.D.

Endocrinology, Diabetes & Metabolism Physician · Lancaster, OH

Assem Houssein, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Lancaster, Ohio, and NPI 1700865722, issued on Jan 10, 2006. Check the license (Ohio 35.066193, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700865722
Name
Assem Houssein
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
35.066193 OH
Self-reported in NPPES; status is on the state search
Practice location
2405 N Columbus St, Lancaster, OH 43130
Phone
(740) 689-6710
Enumerated
Jan 10, 2006
Record last updated
Aug 15, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(740) 689-6712
Medicaid ID
0999326 OH
Medicare enrollment
Enrolled (PECOS I20250218002571); 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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Also registered at 2405 N Columbus St

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

  1. Alyson Adams, CNPFamily Nurse Practitioner1477820462
  2. Robert Angle, PTPhysical Therapist1265582332
  3. Kevin Bates, PA-CPhysician Assistant1508940537
  4. Jeremy Buckley, M.D.Cardiovascular Disease Physician1720106248
  5. Roberto Castellon, MDOtolaryngology Physician1073599973
  6. Daniel Chase, M.D.Otolaryngology Physician1063483857

Verify Assem Houssein 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 35.066193
    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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3.2 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024

8,448 Medicare Part D claims for 838 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.

  1. Assem Houssein8,448
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium985 claims
  2. Metformin Hcl480 claims
  3. Ozempic354 claims
  4. Novolog Flexpen336 claims
  5. Tresiba Flextouch U-100335 claims
  6. Jardiance322 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): 82.5 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 score79.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Industry payments in 2024: $704.01

48 payments; by number, the most common kind was food and beverage; the largest payer was Insulet Corporation. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Assem Houssein$704.01
  2. Specialty average$5,742.15

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

Assem Houssein among 352 endocrinology, diabetes & metabolism physician records in Ohio

Assem Houssein, M.D. is one of 352 endocrinology, diabetes & metabolism 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 56% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1986 · median 2004 among the 255 with a school on file
  • Record last updated2013 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Ohio

There are 352 endocrinology, diabetes & metabolism physician records in Ohio.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Puneetpal Bains, MDPickerington, OH 431471407008782
  2. Janki Patel, MDCircleville, OH 431131942837687
  3. Carrie Casden, D.O.Westerville, OH 430821386937746
  4. Tarang Sharma, MDWesterville, OH 430821912941402
  5. Shampa Chatterjee, M.DWesterville, OH 430811265609515
  6. Zhao Liu, MDColumbus, OH 430811861999385
  7. Nandar Mon, MDColumbus, OH 430811255894978
  8. John Paes, DOWesterville, OH 430811912122334

Common questions

What is Assem Houssein, M.D.'s NPI number?

Assem Houssein, M.D.'s National Provider Identifier (NPI) is 1700865722, issued on Jan 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Assem Houssein, M.D. located?

The NPPES record lists a practice address at 2405 N Columbus St, Lancaster, OH, 43130. Phone: (740) 689-6710. Providers update this record themselves, so call before visiting.

How can I verify Assem Houssein, M.D.'s license?

NPPES lists Ohio license number 35.066193, 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 Assem Houssein, M.D. prescribe under Medicare Part D?

In 2024, Assem Houssein, M.D. had 8,448 Medicare Part D claims for 838 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

What is Assem Houssein, M.D.'s MIPS final score?

The 2023 MIPS final score is 82.5 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.