Marie L. Spiess, PA-C
Physician Assistant · Owosso, MI
Marie L. Spiess, PA-C is a physician assistant with a practice address in Owosso, Michigan, and NPI 1104909753, issued on Oct 24, 2006. Check the license (Michigan 5601003225, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marie L. Spiess
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601003225 MI
Self-reported in NPPES; status is on the state search - Practice location
- 818 W King St, Owosso, MI 48867
- Phone
- (989) 723-3168
- Enumerated
- Oct 24, 2006
- Record last updated
- Mar 28, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (989) 725-2962
- Medicaid ID
- 1104909753 MI
- Medicare enrollment
- Enrolled (PECOS I20061207000116); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
Also registered at 818 W King St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rany Aburashed, D.ONeurology Physician1790909711
- Walid Azmeh, M.D.Surgery Physician1063527182
- Carlie Beningo, PAPhysician Assistant1265621577
- Mandell Bookman, M.D.Urology Physician1598775702
- Markus ByronFamily Nurse Practitioner1013678010
- Lukas Miller, FNPFamily Nurse Practitioner1740144377
Verify Marie L. Spiess in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601003225Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average physician assistant in 2024
151 Medicare Part D claims for 77 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Doxycycline Hyclate43 claims
- Levofloxacin32 claims
- Santyl22 claims
- Sulfamethoxazole-Trimethoprim12 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): 56.4 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: $339.08
12 payments; by number, the most common kind was food and beverage; the largest payer was Kerecis Limited. 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
- Memorial HospitalOwosso, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marie L. Spiess among 6,989 physician assistant records in Michigan
Marie L. Spiess, PA-C is one of 6,989 physician assistant records with a practice address in Michigan. 82% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 83% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1999 · median 2017 among the 4,739 with a school on file
- Record last updated2017 · 40% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 physician assistant records list a practice address in Owosso
They are 26 of the 1,044 NPPES records with a practice address in Owosso, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Owosso → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Carlie Beningo, PAOwosso, MI 488671265621577
- Allison Blaksmith, PA-COwosso, MI 488671093901878
- Iman Chamas, PA-COwosso, MI 488671821544081
- Erik Harp, PA-COwosso, MI 488671164856928
- Charisse Hook, PA-COwosso, MI 488671891822292
- Jennifer Lawson, PAOwosso, MI 488671043257223
- Michael Nelson, PA-C, ATCOwosso, MI 488671033403936
- Tamara Platner, PA-COwosso, MI 488671518156827
Common questions
What is Marie L. Spiess, PA-C's NPI number?
Marie L. Spiess, PA-C's National Provider Identifier (NPI) is 1104909753, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marie L. Spiess, PA-C located?
The NPPES record lists a practice address at 818 W King St, Owosso, MI, 48867. Phone: (989) 723-3168. Providers update this record themselves, so call before visiting.
How can I verify Marie L. Spiess, PA-C's license?
NPPES lists Michigan license number 5601003225, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Marie L. Spiess, PA-C prescribe under Medicare Part D?
In 2024, Marie L. Spiess, PA-C had 151 Medicare Part D claims for 77 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Marie L. Spiess, PA-C's MIPS final score?
The 2023 MIPS final score is 56.4 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.