Guruprasad D. Naik, MD
Cardiovascular Disease Physician · Marshfield, WI
Guruprasad D. Naik, MD is a cardiovascular disease physician with a practice address in Marshfield, Wisconsin, and NPI 1508966813, issued on Sep 25, 2006. Check the license (Wisconsin 45969, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Guruprasad D. Naik
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- 45969 WI
45969-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 N Oak Ave, Marshfield, WI 54449
- Phone
- (715) 387-5511
- Enumerated
- Sep 25, 2006
- Record last updated
- Oct 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 34421800 WI
- Medicare enrollment
- Enrolled (PECOS I20040129000020); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 449 in Wisconsin → Look up another NPI →
Also registered at 1000 N Oak Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Guruprasad D. Naik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 45969Check 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 cardiovascular disease physician in 2024
549 Medicare Part D claims for 145 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Eliquis73 claims
- Metoprolol Succinate66 claims
- Amlodipine Besylate39 claims
- Atorvastatin Calcium36 claims
- Rosuvastatin Calcium36 claims
- Lisinopril29 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): 78.9 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: $17.37
1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 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 2 group practices
- Mchs Hospitals IncMarshfield, WI
- Mercy Health System CorporationJanesville, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guruprasad D. Naik among 449 cardiovascular disease physician records in Wisconsin
Guruprasad D. Naik, MD is one of 449 cardiovascular disease physician 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 10% of them.
- NPI issued2006 · 10% of these records are older, 42% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1992 · median 2001 among the 279 with a school on file
- Record last updated2020 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 cardiovascular disease physician records list a practice address in Marshfield
They are 14 of the 1,360 NPPES records with a practice address in Marshfield, and 449 cardiovascular disease physician records in Wisconsin.
All 449 in Wisconsin → Every provider in Marshfield → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Kelley Anderson, MDMarshfield, WI 544491700996238
- Hatice Baser, MDMarshfield, WI 544491184035818
- Kamilla Buddemeier, MDMarshfield, WI 544491235249780
- Amir Cheema, M.D.Marshfield, WI 544491386707750
- Abdou Elhendy, MD, PHDMarshfield, WI 544491104874304
- David Grierson, MDMarshfield, WI 544491356451801
- P Horton, MDMarshfield, WI 544491699875328
- Manish Kumar, MBBSMarshfield, WI 544491285085761
Common questions
What is Guruprasad D. Naik, MD's NPI number?
Guruprasad D. Naik, MD's National Provider Identifier (NPI) is 1508966813, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guruprasad D. Naik, MD located?
The NPPES record lists a practice address at 1000 N Oak Ave, Marshfield, WI, 54449. Phone: (715) 387-5511. Providers update this record themselves, so call before visiting.
How can I verify Guruprasad D. Naik, MD's license?
NPPES lists Wisconsin license number 45969, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Guruprasad D. Naik, MD prescribe under Medicare Part D?
In 2024, Guruprasad D. Naik, MD had 549 Medicare Part D claims for 145 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Guruprasad D. Naik, MD's MIPS final score?
The 2023 MIPS final score is 78.9 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.