NPPES file of Aug 9, 2026

Derek Floyd Grytzelius, D.D.S.

General Practice Dentistry · Sterling Heights, MI

Derek Floyd Grytzelius, D.D.S. is a general practice dentistry with a practice address in Sterling Heights, Michigan, and NPI 1457555823, issued on Jun 12, 2007. Check the license (Michigan 18970, 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
1457555823
Name
Derek Floyd Grytzelius
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
18970 MI
Self-reported in NPPES; status is on the state search
Practice location
13750 19 Mile RD, Sterling Heights, MI 48313
Phone
(586) 247-0010
Enumerated
Jun 12, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(586) 247-4333
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 13750 19 Mile RD

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

  1. Abraham Gershonowicz, D.D.S.General Practice Dentistry1982808358
  2. Max Grytzelius, D.D.S.Dentist1043598931
  3. Denise Kado, DDSGeneral Practice Dentistry1043851314
  4. Zina Murad-Arafat, D.D.SGeneral Practice Dentistry1962604876
  5. James Neme, D.D.S.General Practice Dentistry1013111483
  6. Zayd OdehGeneral Practice Dentistry1235822479

Verify Derek Floyd Grytzelius 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 18970
    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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31% more Medicare Part D claims than the average general practice dentistry in 2024

109 Medicare Part D claims for 47 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. 20 claims were for opioids.

  1. Derek Grytzelius109
  2. Specialty average83

Most prescribed

  1. Amoxicillin40 claims
  2. Ibuprofen28 claims
  3. Hydrocodone-Acetaminophen18 claims
  4. Clindamycin Hcl11 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: $52.68

1 payment: food and beverage; the largest payer was Straumann USA LLC. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Derek Grytzelius$52.68
  2. Specialty average$597.01

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

Derek Floyd Grytzelius among 4,088 general practice dentistry records in Michigan

Derek Floyd Grytzelius, D.D.S. is one of 4,088 general practice dentistry records with a practice address in Michigan. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 37% of them.

  • NPI issued2007 · 37% of these records are older, 36% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

71 general practice dentistry records list a practice address in Sterling Heights

They are 71 of the 2,991 NPPES records with a practice address in Sterling Heights, and 4,088 general practice dentistry records in Michigan.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Jerome Gerenraich, DDSSterling Hts, MI 483131265446223
  2. Abraham Gershonowicz, D.D.S.Sterling Heights, MI 483131982808358
  3. Thomas Giroux, DDSSterling Heights, MI 483131205939626
  4. Paramvir Singh GuramSterling Heights, MI 483131982134086
  5. Fadi HaddadSterling Heights, MI 483131790177541
  6. Denise Kado, DDSSterling Heights, MI 483131043851314
  7. Douglas Koenke, D.D.S.Sterling Heights, MI 483131942288865
  8. Haifa Mansour, D.D.S., P.C.Sterling Heights, MI 483131013005214

Common questions

What is Derek Floyd Grytzelius, D.D.S.'s NPI number?

Derek Floyd Grytzelius, D.D.S.'s National Provider Identifier (NPI) is 1457555823, issued on Jun 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Derek Floyd Grytzelius, D.D.S. located?

The NPPES record lists a practice address at 13750 19 Mile RD, Sterling Heights, MI, 48313. Phone: (586) 247-0010. Providers update this record themselves, so call before visiting.

How can I verify Derek Floyd Grytzelius, D.D.S.'s license?

NPPES lists Michigan license number 18970, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Derek Floyd Grytzelius, D.D.S. prescribe under Medicare Part D?

In 2024, Derek Floyd Grytzelius, D.D.S. had 109 Medicare Part D claims for 47 beneficiaries; the average among general practice dentistry prescribers was 83. 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.