William Stephen Forness, FNP-C
Family Medicine Physician · Saint Louis, MO
William Stephen Forness, FNP-C is a family medicine physician with a practice address in Saint Louis, Missouri, and NPI 1386237097, issued on Feb 12, 2021. Check the license (Missouri F09191408, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- William Stephen Forness
- Credential
- FNP-C
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- F09191408 MO
Self-reported in NPPES; status is on the state search - Practice location
- 621 S New Ballas RD Ste 560A, Saint Louis, MO 63141
- Phone
- (314) 251-6440
- Enumerated
- Feb 12, 2021
- Record last updated
- Feb 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (314) 251-4456
- Medicare enrollment
- Enrolled (PECOS I20210325001096); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 621 S New Ballas RD Ste 560A
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Stephen Forness 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 F09191408Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average family medicine physician in 2024
12 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $15.62
1 payment: food and beverage; the largest payer was Smith+Nephew, Inc. The 55,478 providers of this specialty with any payment received $902.55 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 Trauma And General Surgery LLCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Stephen Forness among 2,991 family medicine physician records in Missouri
William Stephen Forness, FNP-C is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2016 · median 2006 among the 1,778 with a school on file
- Record last updated2021 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Missouri
There are 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Saint Louis → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Patricia Blair, M.D.Saint Louis, MO 631411992799225
- Damon Broyles, M.D.Saint Louis, MO 631411407856396
- Betsy Clemens, M.D.Creve Coeur, MO 631411700850443
- Christopher Compton, M.D.Saint Louis, MO 631411174567176
- Ivan Covas-Maldonado, M.D.Saint Louis, MO 631411770554198
- Peter Danis, MDCreve Coeur, MO 631411669447314
- Grant Hoekzema, MDSaint Louis, MO 631411609842350
- James Lord, MDSaint Louis, MO 631411508834300
Common questions
What is William Stephen Forness, FNP-C's NPI number?
William Stephen Forness, FNP-C's National Provider Identifier (NPI) is 1386237097, issued on Feb 12, 2021. An NPI identifies a provider in billing; it is not a license.
Where is William Stephen Forness, FNP-C located?
The NPPES record lists a practice address at 621 S New Ballas RD Ste 560A, Saint Louis, MO, 63141. Phone: (314) 251-6440. Providers update this record themselves, so call before visiting.
How can I verify William Stephen Forness, FNP-C's license?
NPPES lists Missouri license number F09191408, 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 William Stephen Forness, FNP-C prescribe under Medicare Part D?
In 2024, William Stephen Forness, FNP-C had 12 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.