Karen F. Giardino, MD (ENDOCRINOLOGIST)
Endocrinology, Diabetes & Metabolism Physician · Williamsville, NY
Karen F. Giardino, MD (ENDOCRINOLOGIST) is an endocrinology, diabetes & metabolism physician with a practice address in Williamsville, New York, and NPI 1023175361, issued on Jan 3, 2007. Check the license (New York 164685-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Karen F. Giardino
- Credential
- MD (ENDOCRINOLOGIST)
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 164685-1 NY
1646851 NY
Self-reported in NPPES; status is on the state search - Practice location
- 5530 Sheridan Dr, Williamsville, NY 14221
- Phone
- (716) 636-8357
- Enumerated
- Jan 3, 2007
- Record last updated
- Sep 21, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (716) 636-1369
- Medicaid ID
- 01210599 NY
- Medicare enrollment
- Enrolled (PECOS I20080527000725); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 970 in New York → Look up another NPI →
Also registered at 5530 Sheridan Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Margaret Gugliuzza, NURSE PRACTITIONERAdult Health Nurse Practitioner1982924254
- Emily Hillman, PA-CMedical Physician Assistant1073008355
- Tonya Panepento, RNRegistered Nurse1063334068
- Alexis Sweeney, AGACNPAcute Care Nurse Practitioner1518685676
- Susanne Wilk-Schank, RN,MS,FNPAdult Health Clinical Nurse Specialist1558681825
Verify Karen F. Giardino in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 164685-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
264 Medicare Part D claims for 99 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Levothyroxine Sodium82 claims
- Synthroid31 claims
- Hydrocortisone18 claims
- Mounjaro13 claims
- Metformin Hcl Er11 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): 72.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,286.74
64 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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
- Preferred Physician Care PCWilliamsville, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen F. Giardino among 970 endocrinology, diabetes & metabolism physician records in New York
Karen F. Giardino, MD (ENDOCRINOLOGIST) is one of 970 endocrinology, diabetes & metabolism physician records with a practice address in New York. 86% 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 43% of them.
- NPI issued2007 · 43% of these records are older, 49% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1985 · median 2004 among the 694 with a school on file
- Record last updated2011 · 59% 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 New York 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 New York
There are 970 endocrinology, diabetes & metabolism physician records in New York.
All 970 in New York → Every provider in Williamsville → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Manav Batra, MBBSWilliamsville, NY 142211396976403
- Robert BorowskiWilliamsville, NY 142211881013167
- Amrutha Idupuganti, MDWilliamsville, NY 142211497142665
- Abhijana KarunakaranWilliamsville, NY 142211093155665
- Mehvish Khan, M.D.Williamsville, NY 142211861927840
- Deepthi Kunduru, M.DWilliamsville, NY 142211801130182
- Howard Lippes, MDWilliamsville, NY 142211750343141
- Priya Mohanty, M.D.Williamsville, NY 142211194712695
Common questions
What is Karen F. Giardino, MD (ENDOCRINOLOGIST)'s NPI number?
Karen F. Giardino, MD (ENDOCRINOLOGIST)'s National Provider Identifier (NPI) is 1023175361, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karen F. Giardino, MD (ENDOCRINOLOGIST) located?
The NPPES record lists a practice address at 5530 Sheridan Dr, Williamsville, NY, 14221. Phone: (716) 636-8357. Providers update this record themselves, so call before visiting.
How can I verify Karen F. Giardino, MD (ENDOCRINOLOGIST)'s license?
NPPES lists New York license number 164685-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen F. Giardino, MD (ENDOCRINOLOGIST) prescribe under Medicare Part D?
In 2024, Karen F. Giardino, MD (ENDOCRINOLOGIST) had 264 Medicare Part D claims for 99 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Karen F. Giardino, MD (ENDOCRINOLOGIST)'s MIPS final score?
The 2023 MIPS final score is 72.8 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.