NPPES file of Aug 9, 2026

Craig Steven Zastrow, ANPC

Nurse Practitioner · Merrill, WI

Craig Steven Zastrow, ANPC is a nurse practitioner with a practice address in Merrill, Wisconsin, and NPI 1407835903, issued on Jan 12, 2006. Check the license (Wisconsin 2546033, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407835903
Name
Craig Steven Zastrow
Credential
ANPC
Primary taxonomy
Nurse Practitioner 363L00000X
License number
2546033 WI
Self-reported in NPPES; status is on the state search
Practice location
3430 E Main St, Merrill, WI 54452
Phone
(715) 804-7500
Enumerated
Jan 12, 2006
Record last updated
Jan 14, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050211000163); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3430 E Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ann Fullington, MDFamily Medicine Physician1154356954
  2. Melissa Koengeter, APNPFamily Nurse Practitioner1467813857

Verify Craig Steven Zastrow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 2546033
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5.0 times the Medicare Part D claims of the average nurse practitioner in 2024

5,520 Medicare Part D claims for 420 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 204 claims were for opioids.

  1. Craig Zastrow5,520
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium356 claims
  2. Lisinopril303 claims
  3. Tamsulosin Hcl211 claims
  4. Amlodipine Besylate197 claims
  5. Furosemide148 claims
  6. Losartan Potassium145 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): 84.6 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.

  1. Qualityout of 100 · 30% of the final score89.8
  2. Costout of 100 · 30%58.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc.Tomahawk, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Craig Steven Zastrow among 3,995 nurse practitioner records in Wisconsin

Craig Steven Zastrow, ANPC is one of 3,995 nurse practitioner records with a practice address in Wisconsin. 77% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 82% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2004 · median 2017 among the 2,701 with a school on file
  • Record last updated2016 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 nurse practitioner records list a practice address in Merrill

They are 5 of the 147 NPPES records with a practice address in Merrill, and 3,995 nurse practitioner records in Wisconsin.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Andrea Heller, NPMerrill, WI 544521134479819
  2. Amy Nikolai, FNPMerrill, WI 544521477716462
  3. Juanita Silverstein, NPMerrill, WI 544521417275009
  4. Kathleen Weix-Klippel, NPMerrill, WI 544521750485066
  5. Diane Anderson, FNPCMedford, WI 544511801875364
  6. Janice Berry, APNPMedford, WI 544511366453334
  7. Haley Erl, DNPMedford, WI 544511770067357
  8. Alexandra Gaines, AGACNP-BCMedford, WI 544511245123728

Common questions

What is Craig Steven Zastrow, ANPC's NPI number?

Craig Steven Zastrow, ANPC's National Provider Identifier (NPI) is 1407835903, issued on Jan 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Craig Steven Zastrow, ANPC located?

The NPPES record lists a practice address at 3430 E Main St, Merrill, WI, 54452. Phone: (715) 804-7500. Providers update this record themselves, so call before visiting.

How can I verify Craig Steven Zastrow, ANPC's license?

NPPES lists Wisconsin license number 2546033, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Craig Steven Zastrow, ANPC prescribe under Medicare Part D?

In 2024, Craig Steven Zastrow, ANPC had 5,520 Medicare Part D claims for 420 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

What is Craig Steven Zastrow, ANPC's MIPS final score?

The 2023 MIPS final score is 84.6 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.