John C. Siegle, MD
Obstetrics & Gynecology Physician · Ada, OK
John C. Siegle, MD is an obstetrics & gynecology physician with a practice address in Ada, Oklahoma, and NPI 1710073044, issued on Oct 5, 2006. Check the license (Oklahoma 17253, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- John C. Siegle
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 17253 OK
Self-reported in NPPES; status is on the state search - Practice location
- 807 N Monte Vista St, Ada, OK 74820
- Phone
- (580) 332-8855
- Enumerated
- Oct 5, 2006
- Record last updated
- Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (580) 332-7374
- Medicaid ID
- 100030550A OK
- Medicare enrollment
- Enrolled (PECOS I20070830000646); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1981
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 438 in Oklahoma → Look up another NPI →
Also registered at 807 N Monte Vista St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natasha EstepMidwife1700383148
- Amber Holbein, MDFamily Medicine Physician1184247900
- Annika Jennings, APRN-CNPWomen's Health Nurse Practitioner1134928096
- Meagan Kite, CNMMidwife1275362402
- Richard Lehman, D.O.Obstetrics & Gynecology Physician1538126990
- Annika LucasClinical Social Worker1518624154
Verify John C. Siegle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 17253Check 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 obstetrics & gynecology physician in 2024
394 Medicare Part D claims for 93 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Estradiol98 claims
- Progesterone22 claims
- Oxybutynin Chloride20 claims
- Alendronate Sodium19 claims
- Myrbetriq16 claims
- Medroxyprogesterone Acetate13 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: $110.20
6 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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 2 group practices
- Central Oklahoma Family Medical Center IncAda, OK
- Family Health Center OF Southern Oklahoma IncTishomingo, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John C. Siegle among 438 obstetrics & gynecology physician records in Oklahoma
John C. Siegle, MD is one of 438 obstetrics & gynecology physician records with a practice address in Oklahoma. 76% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 50% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1981 · median 2006 among the 267 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Oklahoma
There are 438 obstetrics & gynecology physician records in Oklahoma.
All 438 in Oklahoma → Every provider in Ada → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Lucretia Barker, M.D.Ada, OK 748201003817172
- David Frow, MDAda, OK 748201124005947
- Laurel Jordan, DOAda, OK 748201720188493
- Richard Lehman, D.O.Ada, OK 748201538126990
- Michael Marvin, M.D.Ada, OK 748201366483000
- Richard McClain, MDAda, OK 748201073590857
- Mahate Parker, M.D.Ada, OK 748201437476611
- Kimberly Roark, MDAda, OK 748201992965602
Common questions
What is John C. Siegle, MD's NPI number?
John C. Siegle, MD's National Provider Identifier (NPI) is 1710073044, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John C. Siegle, MD located?
The NPPES record lists a practice address at 807 N Monte Vista St, Ada, OK, 74820. Phone: (580) 332-8855. Providers update this record themselves, so call before visiting.
How can I verify John C. Siegle, MD's license?
NPPES lists Oklahoma license number 17253, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John C. Siegle, MD prescribe under Medicare Part D?
In 2024, John C. Siegle, MD had 394 Medicare Part D claims for 93 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.