NPPES file of Aug 9, 2026

Alexander James Groth

Optometrist · Jackson, MI

Alexander James Groth is an optometrist with a practice address in Jackson, Michigan, and NPI 1720571839, issued on Jun 13, 2018. Check the license (Michigan 4901005121, as entered in NPPES) with the Michigan board that licenses this profession; 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
1720571839
Name
Alexander James Groth
Primary taxonomy
Optometrist 152W00000X
License number
4901005121 MI
Self-reported in NPPES; status is on the state search
Practice location
850 W North St, Jackson, MI 49202
Phone
(248) 647-9790
Enumerated
Jun 13, 2018
Record last updated
Aug 7, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180709001489); 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 850 W North St

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

  1. Lindsay Klumpp, O.D.Optometrist1174923189

Verify Alexander James Groth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4901005121
    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
Find the Michigan license search

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89% fewer Medicare Part D claims than the average optometrist in 2024

31 Medicare Part D claims for 22 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Alexander Groth31
  2. Specialty average277

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.

Bills Medicare through one group practice

  1. P-Cor LLCSouthfield, MI

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

Alexander James Groth among 1,963 optometrist records in Michigan

Alexander James Groth is one of 1,963 optometrist records with a practice address in Michigan. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 77% of them.

  • NPI issued2018 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2018 · median 2009 among the 1,121 with a school on file
  • Record last updated2019 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Michigan

There are 1,963 optometrist records in Michigan.

The 8 optometrist records with the nearest ZIP codes

  1. Allison Bissot, O.D.Jackson, MI 492021093705295
  2. Gilbert Blanks, O.D.Jackson, MI 492021114917317
  3. William Buckingham, O.D.Jackson, MI 492021366437675
  4. Barbara Fayos, O.D.Jackson, MI 492021871651034
  5. Tina Hayes, O.D.Jackson, MI 492021669575361
  6. Tiffany Humes, O.D.Jackson, MI 492021922360650
  7. Steven Johnson, O.D.Jackson, MI 492021366413072
  8. Katherine Potter, O.D.Jackson, MI 492021457582983

Common questions

What is Alexander James Groth's NPI number?

Alexander James Groth's National Provider Identifier (NPI) is 1720571839, issued on Jun 13, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Alexander James Groth located?

The NPPES record lists a practice address at 850 W North St, Jackson, MI, 49202. Phone: (248) 647-9790. Providers update this record themselves, so call before visiting.

How can I verify Alexander James Groth's license?

NPPES lists Michigan license number 4901005121, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Alexander James Groth prescribe under Medicare Part D?

In 2024, Alexander James Groth had 31 Medicare Part D claims for 22 beneficiaries; the average among optometrist prescribers was 277. 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.