Guillermo Manuel Guardia Gonzales, MD
Endocrinology, Diabetes & Metabolism Physician · Toledo, OH
Guillermo Manuel Guardia Gonzales, MD is an endocrinology, diabetes & metabolism physician with a practice address in Toledo, Ohio, and NPI 1902866387, issued on Mar 28, 2006. Check the license (Ohio 35095361, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Guillermo Manuel Guardia Gonzales
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 35095361 OH
Self-reported in NPPES; status is on the state search - Practice location
- 2100 W Central Ave, Toledo, OH 43606
- Phone
- (419) 537-5111
- Enumerated
- Mar 28, 2006
- Record last updated
- Nov 3, 2023
- Fax
- (419) 537-5131
- Medicare enrollment
- Enrolled (PECOS I20101015000867); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 352 in Ohio → Look up another NPI →
Also registered at 2100 W Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Renad Alhabashi, MDStudent in an Organized Health Care Education/Training Program1588502553
Verify Guillermo Manuel Guardia Gonzales in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35095361Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024
6,433 Medicare Part D claims for 932 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Levothyroxine Sodium874 claims
- Mounjaro454 claims
- Lantus Solostar320 claims
- Ozempic316 claims
- Metformin Hcl304 claims
- Metformin Hcl Er212 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: $34.32
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Promedica Multi Specialty PhysiciansToledo, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guillermo Manuel Guardia Gonzales among 352 endocrinology, diabetes & metabolism physician records in Ohio
Guillermo Manuel Guardia Gonzales, MD is one of 352 endocrinology, diabetes & metabolism physician records with a practice address in Ohio. 83% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 56% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1998 · median 2004 among the 255 with a school on file
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Ohio
There are 352 endocrinology, diabetes & metabolism physician records in Ohio.
All 352 in Ohio → Every provider in Toledo → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Abdul-Badi Abou-Samra, M.D., PH.D.Toledo, OH 436061932195203
- Richard Beham, M.D.Toledo, OH 436061568468023
- Aparna Brown, M.D.Toledo, OH 436061174570337
- Jyoti Chakravarty, M.D.Toledo, OH 436061740286236
- Luis Gerstenmaier, M.D.Toledo, OH 436061528064029
- Abby Grisham, LSWToledo, OH 436061821535568
- Bhaskar Gundabolu, M.D.Toledo, OH 436061346458767
- Gurbir HeharToledo, OH 436061952985830
Common questions
What is Guillermo Manuel Guardia Gonzales, MD's NPI number?
Guillermo Manuel Guardia Gonzales, MD's National Provider Identifier (NPI) is 1902866387, issued on Mar 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Manuel Guardia Gonzales, MD located?
The NPPES record lists a practice address at 2100 W Central Ave, Toledo, OH, 43606. Phone: (419) 537-5111. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Manuel Guardia Gonzales, MD's license?
NPPES lists Ohio license number 35095361, 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 Guillermo Manuel Guardia Gonzales, MD prescribe under Medicare Part D?
In 2024, Guillermo Manuel Guardia Gonzales, MD had 6,433 Medicare Part D claims for 932 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.