Gregory A. Ledger, MD
Endocrinology, Diabetes & Metabolism Physician · Springfield, MO
Gregory A. Ledger, MD is an endocrinology, diabetes & metabolism physician with a practice address in Springfield, Missouri, and NPI 1205903663, issued on Nov 29, 2006. Check the license (Missouri 105722, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Gregory A. Ledger
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 105722 MO
Self-reported in NPPES; status is on the state search - Practice location
- 3231 S National Ave, Springfield, MO 65807
- Phone
- (417) 888-5660
- Enumerated
- Nov 29, 2006
- Record last updated
- May 2, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (417) 888-6793
- Medicaid ID
- 207635814 MO
- Medicare enrollment
- Enrolled (PECOS I20100720000006); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 206 in Missouri → Look up another NPI →
Also registered at 3231 S National Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Martin Alumno, MDFamily Medicine Physician1518006170
- Carla Athen, FNP-CFamily Nurse Practitioner1134501695
- Bennett Bolyard, D.O.Internal Medicine Physician1386986545
- Sarah Bowman, L.D.Registered Dietitian1609899566
- John Brown, MDFamily Medicine Physician1013057447
- Lorraine Brown, MDFamily Medicine Physician1144361957
Verify Gregory A. Ledger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 105722Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
975 Medicare Part D claims for 277 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 Sodium236 claims
- Testosterone58 claims
- Testosterone Cypionate43 claims
- Metformin Hcl41 claims
- Methimazole35 claims
- Amlodipine Besylate29 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: $44.98
2 payments; by number, the most common kind was food and beverage; the largest payer was Recordati_rare_diseases_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
- Mercy Clinic Springfield CommunitiesRolla, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory A. Ledger among 206 endocrinology, diabetes & metabolism physician records in Missouri
Gregory A. Ledger, MD is one of 206 endocrinology, diabetes & metabolism physician records with a practice address in Missouri. 88% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1988 · median 2003 among the 148 with a school on file
- Record last updated2013 · 45% 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 Missouri 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 Missouri
There are 206 endocrinology, diabetes & metabolism physician records in Missouri.
All 206 in Missouri → Every provider in Springfield → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Hussam Alhawari, M.D.Springfield, MO 658071538383781
- James Bonucchi, DOSpringfield, MO 658071225054109
- Ralph Duda, M.D.Springfield, MO 658071356436406
- Nicola Gathaiya, MDSpringfield, MO 658071154513752
- Muriel Tania Go, M.D., M.B.A.Springfield, MO 658071205219821
- Nadir Khir, MDSpringfield, MO 658071629204003
- Daniel Lyons, MDSpringfield, MO 658071386641983
- Jubran Afzal Khan Rind, MDSpringfield, MO 658071679959712
Common questions
What is Gregory A. Ledger, MD's NPI number?
Gregory A. Ledger, MD's National Provider Identifier (NPI) is 1205903663, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory A. Ledger, MD located?
The NPPES record lists a practice address at 3231 S National Ave, Springfield, MO, 65807. Phone: (417) 888-5660. Providers update this record themselves, so call before visiting.
How can I verify Gregory A. Ledger, MD's license?
NPPES lists Missouri license number 105722, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory A. Ledger, MD prescribe under Medicare Part D?
In 2024, Gregory A. Ledger, MD had 975 Medicare Part D claims for 277 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.