NPPES file of Aug 9, 2026

Yen-I Grace Chen, M.D.

Family Medicine Physician · Marietta, GA

Yen-I Grace Chen, M.D. is a family medicine physician with a practice address in Marietta, Georgia, and NPI 1003043324, issued on Jun 12, 2009. Check the license (Georgia 78611, as entered in NPPES) on the Georgia Composite Medical Board; 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
1003043324
Name
Yen-I Grace Chen
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
78611 GA
Self-reported in NPPES; status is on the state search
Practice location
1010 Johnson Ferry RD, Marietta, GA 30068
Phone
(770) 579-7900
Enumerated
Jun 12, 2009
Record last updated
Mar 14, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(770) 579-7942
Medicare enrollment
Enrolled (PECOS I20171025003660); 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 1010 Johnson Ferry RD

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

  1. Radhika Arumilli, MBBSFamily Medicine Physician1568046951
  2. Philip Batista, MDFamily Medicine Physician1003889197
  3. Jane Boyers, CNPNurse Practitioner1962475152
  4. Darlene Coyne, N.P.Family Nurse Practitioner1649267444
  5. Jana Dunkley, LCSWClinical Social Worker1811669807
  6. Timothy Helton, MDFamily Medicine Physician1972592145

Verify Yen-I Grace Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 78611
    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 Georgia 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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6% fewer Medicare Part D claims than the average family medicine physician in 2024

3,316 Medicare Part D claims for 378 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 50 claims were for opioids.

  1. Yen-I Chen3,316
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium369 claims
  2. Amlodipine Besylate180 claims
  3. Lisinopril155 claims
  4. Rosuvastatin Calcium153 claims
  5. Levothyroxine Sodium128 claims
  6. Metformin Hcl125 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 MIPS final score for 2023 (Medicare payment program): 92.9 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score80.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $566.81

27 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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. Yen-I Chen$566.81
  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. Wellstar Medical Group LLCMarietta, GA

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

Yen-I Grace Chen among 3,951 family medicine physician records in Georgia

Yen-I Grace Chen, M.D. is one of 3,951 family medicine physician records with a practice address in Georgia. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 58% of them.

  • NPI issued2009 · 58% of these records are older, 40% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2002 · median 2005 among the 2,542 with a school on file
  • Record last updated2018 · 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 207Q00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

113 family medicine physician records list a practice address in Marietta

They are 113 of the 6,900 NPPES records with a practice address in Marietta, and 3,951 family medicine physician records in Georgia.

The 8 family medicine physician records with the nearest ZIP codes

  1. Charles Anderson, M.D.Marietta, GA 300681902848930
  2. Dolapo Babalola, MDMarietta, GA 300681083809495
  3. Philip Batista, MDMarietta, GA 300681003889197
  4. Louis Cohen, M.D.Marietta, GA 300681639260433
  5. Timothy Helton, MDMarietta, GA 300681972592145
  6. Glenn Hirsch, MDMarietta, GA 300681922071018
  7. Sharon King, M.D.Marietta, GA 300681508928821
  8. Brian Nadolne, M.D.Marietta, GA 300681407805872

Common questions

What is Yen-I Grace Chen, M.D.'s NPI number?

Yen-I Grace Chen, M.D.'s National Provider Identifier (NPI) is 1003043324, issued on Jun 12, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Yen-I Grace Chen, M.D. located?

The NPPES record lists a practice address at 1010 Johnson Ferry RD, Marietta, GA, 30068. Phone: (770) 579-7900. Providers update this record themselves, so call before visiting.

How can I verify Yen-I Grace Chen, M.D.'s license?

NPPES lists Georgia license number 78611, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Yen-I Grace Chen, M.D. prescribe under Medicare Part D?

In 2024, Yen-I Grace Chen, M.D. had 3,316 Medicare Part D claims for 378 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Yen-I Grace Chen, M.D.'s MIPS final score?

The 2023 MIPS final score is 92.9 of 100. 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.