NPPES file of Aug 9, 2026

Gregory Kenneth Suelzle, MD

Interventional Pain Medicine Physician · Upland, CA

Gregory Kenneth Suelzle, MD is an interventional pain medicine physician with a practice address in Upland, California, and NPI 1326016023, issued on Mar 9, 2006. Check the license (California G77184, as entered in NPPES) on the Medical Board of California; 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
1326016023
Name
Gregory Kenneth Suelzle
Credential
MD
Primary taxonomy
Interventional Pain Medicine Physician 208VP0014X
License number
G77184 CA
Self-reported in NPPES; status is on the state search
Practice location
1330 San Bernardino RD, Upland, CA 91786
Phone
(909) 981-0608
Enumerated
Mar 9, 2006
Record last updated
Sep 20, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(909) 982-5327
Medicare enrollment
Enrolled (PECOS I20040326000488); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1992
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 1330 San Bernardino RD

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

  1. Nalini Garg, M.D.Anesthesiology Physician1124047758
  2. Stuart McCarthy, M.D.Otolaryngology Physician1932105715
  3. Edward Park, M.D.Specialist1447344429
  4. Frank Seo, D.D.S.General Practice Dentistry1467414524
  5. Robert Sorosky, M.D.Specialist1073538476
  6. Walter Stevens, M.D.Specialist1720058134

Verify Gregory Kenneth Suelzle in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G77184
    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 California license search

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58% fewer Medicare Part D claims than the average interventional pain medicine physician in 2024

965 Medicare Part D claims for 74 beneficiaries, against an average of 2,306 among the 2,100 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims. 595 claims were for opioids.

  1. Gregory Suelzle965
  2. Specialty average2,306

Most prescribed

  1. Hydrocodone-Acetaminophen239 claims
  2. Oxycodone Hcl153 claims
  3. Gabapentin129 claims
  4. Oxycodone-Acetaminophen95 claims
  5. Pregabalin64 claims
  6. Diazepam25 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.

Gregory Kenneth Suelzle among 219 interventional pain medicine physician records in California

Gregory Kenneth Suelzle, MD is one of 219 interventional pain medicine physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 55% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1992 · median 2003 among the 167 with a school on file
  • Record last updated2010 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208VP0014X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Interventional Pain Medicine Physician providers in California

There are 219 interventional pain medicine physician records in California.

The 8 interventional pain medicine physician records with the nearest ZIP codes

  1. Sam Ahdab, M.D.West Covina, CA 917901992941397
  2. Richard KennedyWest Covina, CA 917901487668513
  3. Paul Chiu, MDAlhambra, CA 918011467440883
  4. Chad Lee, M.D.Alhambra, CA 918011457694887
  5. Bryan Lee, MDPomona, CA 917671467512624
  6. John Sasaki, MDPomona, CA 917671407916208
  7. James Rho, M.D.Rancho Cucamonga, CA 917301548323769
  8. James Kim, M.D.Covina, CA 917231649698481

Common questions

What is Gregory Kenneth Suelzle, MD's NPI number?

Gregory Kenneth Suelzle, MD's National Provider Identifier (NPI) is 1326016023, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Kenneth Suelzle, MD located?

The NPPES record lists a practice address at 1330 San Bernardino RD, Upland, CA, 91786. Phone: (909) 981-0608. Providers update this record themselves, so call before visiting.

How can I verify Gregory Kenneth Suelzle, MD's license?

NPPES lists California license number G77184, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory Kenneth Suelzle, MD prescribe under Medicare Part D?

In 2024, Gregory Kenneth Suelzle, MD had 965 Medicare Part D claims for 74 beneficiaries; the average among interventional pain medicine physician prescribers was 2,306. 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.