NPPES file of Aug 9, 2026

Phoebe Chi Yie Koh, M.D.

Family Medicine Physician · Massillon, OH

Phoebe Chi Yie Koh, M.D. is a family medicine physician with a practice address in Massillon, Ohio, and NPI 1184368607, issued on Apr 21, 2022. Check the license (Ohio 57.253178, 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
1184368607
Name
Phoebe Chi Yie Koh
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
57.253178 OH
Self-reported in NPPES; status is on the state search
Practice location
2859 Aaronwood Ave NE, Massillon, OH 44646
Phone
(330) 832-2280
Enumerated
Apr 21, 2022
Record last updated
Mar 30, 2026
Fax
(330) 832-4732
Medicare enrollment
Enrolled (PECOS I20260417003038); 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 2859 Aaronwood Ave NE

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

  1. Alaa Al Saif, M.D.Family Medicine Physician1730332909
  2. Christina Baker, PA-CPhysician Assistant1619402070
  3. Tracy Kotnik, M.D., F.A.A.F.P.Family Medicine Physician1619967957

Verify Phoebe Chi Yie Koh 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 57.253178
    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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44% fewer Medicare Part D claims than the average family medicine physician in 2024

1,978 Medicare Part D claims for 178 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Phoebe Chi Yie Koh1,978
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium161 claims
  2. Amlodipine Besylate140 claims
  3. Metoprolol Succinate85 claims
  4. Lisinopril81 claims
  5. Metformin Hcl79 claims
  6. Hydrochlorothiazide54 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: $78.25

3 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Phoebe Chi Yie Koh$78.25
  2. Specialty average$902.55

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

Bills Medicare through one group practice

  1. Mercy Professional Care, LLCMassillon, OH

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

Phoebe Chi Yie Koh among 5,606 family medicine physician records in Ohio

Phoebe Chi Yie Koh, M.D. is one of 5,606 family medicine physician records with a practice address in Ohio. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 93% of them.

  • NPI issued2022 · 93% of these records are older, 4% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2021 · median 2005 among the 3,510 with a school on file
  • Record last updated2026 · 58% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

25 family medicine physician records list a practice address in Massillon

They are 25 of the 925 NPPES records with a practice address in Massillon, and 5,606 family medicine physician records in Ohio.

The 8 family medicine physician records with the nearest ZIP codes

  1. Suzanne Biggs, D.O.Massillon, OH 446461447286935
  2. Cory Brown, DOMassillon, OH 446461811910565
  3. Ashley Clarke, DOMassillon, OH 446461245269562
  4. Son Dang, MDMassillon, OH 446461699764944
  5. Christopher Davis, D.O.Massillon, OH 446461184726820
  6. Jeffery Duffey, MDMassillon, OH 446461033127436
  7. Victor Dunham, MDMassillon, OH 446461104880137
  8. Jessica Falvo Lang, M.D.Massillon, OH 446461043295892

Common questions

What is Phoebe Chi Yie Koh, M.D.'s NPI number?

Phoebe Chi Yie Koh, M.D.'s National Provider Identifier (NPI) is 1184368607, issued on Apr 21, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Phoebe Chi Yie Koh, M.D. located?

The NPPES record lists a practice address at 2859 Aaronwood Ave NE, Massillon, OH, 44646. Phone: (330) 832-2280. Providers update this record themselves, so call before visiting.

How can I verify Phoebe Chi Yie Koh, M.D.'s license?

NPPES lists Ohio license number 57.253178, 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 Phoebe Chi Yie Koh, M.D. prescribe under Medicare Part D?

In 2024, Phoebe Chi Yie Koh, M.D. had 1,978 Medicare Part D claims for 178 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.