William Daryll Parkkonen, NP
Psychiatric/Mental Health Nurse Practitioner · Marquette, MI
William Daryll Parkkonen, NP is a psychiatric/mental health nurse practitioner with a practice address in Marquette, Michigan, and NPI 1851454276, issued on Dec 18, 2006. Check the license (Michigan 4704207327, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Daryll Parkkonen
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 4704207327 MI
Self-reported in NPPES; status is on the state search - Practice location
- 580 W College Ave, Marquette, MI 49855
- Phone
- (906) 225-4690
- Enumerated
- Dec 18, 2006
- Record last updated
- Feb 25, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (906) 225-4675
- Medicaid ID
- 4956101 MI
- Medicare enrollment
- Enrolled (PECOS I20070220000590); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 931 in Michigan → Look up another NPI →
Also registered at 580 W College Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Daryll Parkkonen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704207327Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024
2,521 Medicare Part D claims for 159 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Trazodone Hcl169 claims
- Lamotrigine156 claims
- Venlafaxine Hcl Er145 claims
- Quetiapine Fumarate127 claims
- Clonazepam125 claims
- Bupropion Xl118 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.
Bills Medicare through one group practice
- Dlp Marquette Physician Practices IncMarquette, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Daryll Parkkonen among 931 psychiatric/mental health nurse practitioner records in Michigan
William Daryll Parkkonen, NP is one of 931 psychiatric/mental health nurse practitioner records with a practice address in Michigan. 69% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 94% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2005 · median 2022 among the 570 with a school on file
- Record last updated2008 · 19% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in Michigan
There are 931 psychiatric/mental health nurse practitioner records in Michigan.
All 931 in Michigan → Every provider in Marquette → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Melissa Copenhaver, DNP, FNP-BC, LMSWMarquette, MI 498551598104572
- Janet Delvalle, PMHNP-BCMarquette, MI 498551629486766
- Kyle Kakuk, MSN, APRN, PMHNP-BCMarquette, MI 498551508659509
- Evan Lehr, MSN, PMHNP-BC, RNMarquette, MI 498551912851601
- Katherine Menard, PMHNP-BCMarquette, MI 498551114775749
- Angela Moore, MSN, FNP-C, PMHNP-BCMarquette, MI 498551861155178
- Rachel Nye, DNP, PMHNP-BC,FNP-BCMarquette, MI 498551154885184
- Jennifer Peano, PMHNP-BCMarquette, MI 498551760370985
Common questions
What is William Daryll Parkkonen, NP's NPI number?
William Daryll Parkkonen, NP's National Provider Identifier (NPI) is 1851454276, issued on Dec 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Daryll Parkkonen, NP located?
The NPPES record lists a practice address at 580 W College Ave, Marquette, MI, 49855. Phone: (906) 225-4690. Providers update this record themselves, so call before visiting.
How can I verify William Daryll Parkkonen, NP's license?
NPPES lists Michigan license number 4704207327, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does William Daryll Parkkonen, NP prescribe under Medicare Part D?
In 2024, William Daryll Parkkonen, NP had 2,521 Medicare Part D claims for 159 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.