NPPES file of Aug 9, 2026

Charles Lewis Geiger, D.O.

Family Medicine Physician · Newark, OH

Charles Lewis Geiger, D.O. is a family medicine physician with a practice address in Newark, Ohio, and NPI 1235115270, issued on Dec 21, 2005. Check the license (Ohio 34007833G, 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
1235115270
Name
Charles Lewis Geiger
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
34007833G OH
1932 WV
Self-reported in NPPES; status is on the state search
Practice location
1970 Tamarack RD, Newark, OH 43055
Phone
(220) 564-1770
Enumerated
Dec 21, 2005
Record last updated
Mar 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(220) 564-1771
Medicaid ID
2324916 OH
Medicare enrollment
Enrolled (PECOS I20100419000404); accepts Medicare assignment
Medical or professional school
Rowan University School Of Osteopathic Medicine, 1999
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 1970 Tamarack RD

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

  1. Carlos Domingo, M.D.Surgery Physician1770615528
  2. Pamela Fincato, FNP-CFamily Nurse Practitioner1871290684
  3. Alex Juan, M.D.Surgery Physician1447247309
  4. Sherri Mitchell, R.N.F.A.Medical-Surgical Clinical Nurse Specialist1124015094

Verify Charles Lewis Geiger 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 34007833G
    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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4.3 times the Medicare Part D claims of the average family medicine physician in 2024

15,205 Medicare Part D claims for 628 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 849 claims were for opioids.

  1. Charles Geiger15,205
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium910 claims
  2. Losartan Potassium632 claims
  3. Amlodipine Besylate486 claims
  4. Lisinopril468 claims
  5. Levothyroxine Sodium457 claims
  6. Metoprolol Succinate426 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): 79.4 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 score71.0
  2. Costout of 100 · 30%57.9
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $22.35

1 payment: food and beverage; the largest payer was Abbvie 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. Charles Geiger$22.35
  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. Licking Memorial Health ProfessionalsNewark, OH

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

Charles Lewis Geiger among 5,606 family medicine physician records in Ohio

Charles Lewis Geiger, D.O. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 82% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1999 · median 2005 among the 3,510 with a school on file
  • Record last updated2021 · 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).

23 family medicine physician records list a practice address in Newark

They are 23 of the 1,642 NPPES records with a practice address in Newark, and 5,606 family medicine physician records in Ohio.

The 8 family medicine physician records with the nearest ZIP codes

  1. Garth Bennington, MDNewark, OH 430551184606303
  2. Michael Campolo, DONewark, OH 430551184604167
  3. Richard Donnard, DONewark, OH 430551962482950
  4. Dwight Goddard, MDNewark, OH 430551407835572
  5. Joette Greenstein, DONewark, OH 430551841270758
  6. Matthew Harris, DONewark, OH 430551134105968
  7. Thomas Petryk, MDNewark, OH 430551245210244
  8. John Robertson, DONewark, OH 430551770571804

Common questions

What is Charles Lewis Geiger, D.O.'s NPI number?

Charles Lewis Geiger, D.O.'s National Provider Identifier (NPI) is 1235115270, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Charles Lewis Geiger, D.O. located?

The NPPES record lists a practice address at 1970 Tamarack RD, Newark, OH, 43055. Phone: (220) 564-1770. Providers update this record themselves, so call before visiting.

How can I verify Charles Lewis Geiger, D.O.'s license?

NPPES lists Ohio license number 34007833G, 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 Charles Lewis Geiger, D.O. prescribe under Medicare Part D?

In 2024, Charles Lewis Geiger, D.O. had 15,205 Medicare Part D claims for 628 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Charles Lewis Geiger, D.O.'s MIPS final score?

The 2023 MIPS final score is 79.4 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.