Cassandra Guenthardt, NP-C
Family Medicine Physician · Manistee, MI
Cassandra Guenthardt, NP-C is a family medicine physician with a practice address in Manistee, Michigan, and NPI 1427729979, issued on Sep 24, 2021. Check the license (Michigan 4704257000, as entered in NPPES) on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Cassandra Guenthardt
- Credential
- NP-C
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 4704257000 MI
470425700 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1391 E Parkdale Ave, Manistee, MI 49660
- Phone
- (231) 398-1878
- Enumerated
- Sep 24, 2021
- Entity
- Type 1 · individual
Also registered at 1391 E Parkdale Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ruben Barroso, DOFamily Medicine Physician1922673243
- Theodore Batzer, MDNeuromusculoskeletal Medicine & OMM Physician1336131606
- Jessica Heron, PA-CPhysician Assistant1770081002
- Chelsey KottPeer Specialist1104784958
Verify Cassandra Guenthardt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine
Search for license 4704257000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.4 times the Medicare Part D claims of the average family medicine physician in 2024
12,069 Medicare Part D claims for 672 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 673 claims were for opioids.
Most prescribed
- Atorvastatin Calcium487 claims
- Lisinopril480 claims
- Gabapentin449 claims
- Levothyroxine Sodium399 claims
- Hydrocodone-Acetaminophen386 claims
- Amlodipine Besylate312 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: $319.86
15 payments, mostly food and beverage; the largest payer was Abbvie Inc.. The 53,013 providers of this specialty with any payment received $861.30 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.
One hospital or facility affiliation
- Munson Healthcare Manistee HospitalManistee, MI · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
12 family medicine physician records list a Manistee practice address
They are 12 of the 319 NPPES records with a Manistee practice address, and 5,783 family medicine physician records in Michigan.
All 12 in Manistee → All 5,783 in Michigan → Every provider in Manistee →
Other family medicine physician records in Michigan
- Asma AbbasHamtramck, MI1982946463
- Saadia Abbas, MDChesterfield, MI1619136868
- Faezeh AbbasiMonroe, MI1144065921
- Layla Abbasi, MDWayne, MI1346177607
- Marisa Abbo, DORochester Hills, MI1184605388
- Cathleen Abbott, M.D.East Lansing, MI1275630501
- Leah Abbott, MDGwinn, MI1760987341
- Nina Abboud, DORochester Hills, MI1639750557
- Ryan Abboud, DOBingham Farms, MI1104353077
- Christina Abd, MDSterling Heights, MI1770371965
Common questions
What is Cassandra Guenthardt, NP-C's NPI number?
Cassandra Guenthardt, NP-C's National Provider Identifier (NPI) is 1427729979, issued on Sep 24, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Guenthardt, NP-C located?
The NPPES record lists a practice address at 1391 E Parkdale Ave, Manistee, MI, 49660. Phone: (231) 398-1878. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Guenthardt, NP-C's license?
NPPES lists Michigan license number 4704257000, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cassandra Guenthardt, NP-C prescribe under Medicare Part D?
In 2024, Cassandra Guenthardt, NP-C had 12,069 Medicare Part D claims for 672 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.