Erin Gillam Spears, PA
Physician Assistant · Saint Louis, MO
Erin Gillam Spears, PA is a physician assistant with a practice address in Saint Louis, Missouri, and NPI 1952762411, issued on Mar 11, 2016. Check the license (Missouri 2019016750, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Gillam Spears
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 2019016750 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1044 N Mason RD, Saint Louis, MO 63141
- Phone
- (314) 362-3500
- Enumerated
- Mar 11, 2016
- Record last updated
- Apr 17, 2025
- Fax
- (314) 230-1119
- Medicaid ID
- 220076930 MO
- Medicare enrollment
- Enrolled (PECOS I20190716003560); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,790 in Missouri → Look up another NPI →
Also registered at 1044 N Mason RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Erin Gillam Spears in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2019016750Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% more Medicare Part D claims than the average physician assistant in 2024
861 Medicare Part D claims for 206 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Topiramate121 claims
- Ozempic115 claims
- Mounjaro98 claims
- Bupropion Xl46 claims
- Naltrexone Hcl37 claims
- Bupropion Hcl Sr36 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: $393.99
3 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 64,719 providers of this specialty with any payment received $841.65 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
- Washington UniversityHazelwood, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Gillam Spears among 1,790 physician assistant records in Missouri
Erin Gillam Spears, PA is one of 1,790 physician assistant records with a practice address in Missouri. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 39% of them.
- NPI issued2016 · 39% of these records are older, 58% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2015 · median 2019 among the 1,250 with a school on file
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
498 physician assistant records list a practice address in Saint Louis
They are 498 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,790 physician assistant records in Missouri.
All 1,790 in Missouri → Every provider in Saint Louis → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christopher Berner, P.A.-CSaint Louis, MO 631411376674176
- Lindsey Blaha, PA-CSaint Louis, MO 631411609802123
- Heather Brinkman, PHY ASSIST CERTSaint Louis, MO 631411992718522
- Michelle BuschSaint Louis, MO 631411760585087
- Kara Cardinal, PASaint Louis, MO 631411619065331
- Amie Chang, P.A.Creve Coeur, MO 631411366557209
- Kara Harres, PASaint Louis, MO 631411306920277
- Shirley Haynes, PA-CSaint Louis, MO 631411225003551
Common questions
What is Erin Gillam Spears, PA's NPI number?
Erin Gillam Spears, PA's National Provider Identifier (NPI) is 1952762411, issued on Mar 11, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Erin Gillam Spears, PA located?
The NPPES record lists a practice address at 1044 N Mason RD, Saint Louis, MO, 63141. Phone: (314) 362-3500. Providers update this record themselves, so call before visiting.
How can I verify Erin Gillam Spears, PA's license?
NPPES lists Missouri license number 2019016750, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Gillam Spears, PA prescribe under Medicare Part D?
In 2024, Erin Gillam Spears, PA had 861 Medicare Part D claims for 206 beneficiaries; the average among physician assistant prescribers was 830. 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.