John A. Knapp, M.D.
Specialist · Roseville, MI
John A. Knapp, M.D. is a specialist with a practice address in Roseville, Michigan, and NPI 1811997216, issued on Jul 28, 2005. Check the license (Michigan 051917, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John A. Knapp
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 051917 MI
Self-reported in NPPES; status is on the state search - Practice location
- 29751 Little Mack Ave, Roseville, MI 48066
- Phone
- (586) 415-6200
- Enumerated
- Jul 28, 2005
- Record last updated
- Mar 11, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (586) 415-6217
- Medicaid ID
- 2745645 MI
- Medicare enrollment
- Enrolled (PECOS I20050808000466); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest specialist records → All 772 in Michigan → Look up another NPI →
Also registered at 29751 Little Mack Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Margot Abundis, M.D.Obstetrics & Gynecology Physician1396746194
- Paul Blunden, M.D.Specialist1427058957
- Hillary Brass, CNMAdvanced Practice Midwife1023484839
- Benjamin Chen, M.D.Obstetrics & Gynecology Physician1245230457
- Abigail Devine, APRN, CNMAdvanced Practice Midwife1164311288
- Elizabeth Finkel, CNMAdvanced Practice Midwife1902621345
Verify John A. Knapp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 051917Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average specialist in 2024
537 Medicare Part D claims for 170 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Nystatin-Triamcinolone70 claims
- Estradiol43 claims
- Ibandronate Sodium38 claims
- Fluconazole27 claims
- Estradiol (Twice Weekly)25 claims
- Valacyclovir24 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): 96.8 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: $499.80
25 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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
- Together Women's Health Medical Group, P.C.Roseville, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John A. Knapp among 772 specialist records in Michigan
John A. Knapp, M.D. is one of 772 specialist records with a practice address in Michigan. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 9% of these records are
- Graduated1987 · median 1988 among the 73 with a school on file
- Record last updated2014 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Michigan
There are 772 specialist records in Michigan.
All 772 in Michigan → Every provider in Roseville → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Paul Blunden, M.D.Roseville, MI 480661427058957
- Suzanne Hall, M.D.Roseville, MI 480661689674897
- Deborah Hamby, M.D.Roseville, MI 480661972503183
- Nancy Valentini, M.D.Roseville, MI 480661285634493
- Bradley WalbecqRoseville, MI 480661700667953
- Dawn Sinacola, L.M.T.Romeo, MI 480651083060123
- Lorraine ClosserRichmond, MI 480621447608625
- Michelle Keys, PTHuntington Woods, MI 480701265633788
Common questions
What is John A. Knapp, M.D.'s NPI number?
John A. Knapp, M.D.'s National Provider Identifier (NPI) is 1811997216, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John A. Knapp, M.D. located?
The NPPES record lists a practice address at 29751 Little Mack Ave, Roseville, MI, 48066. Phone: (586) 415-6200. Providers update this record themselves, so call before visiting.
How can I verify John A. Knapp, M.D.'s license?
NPPES lists Michigan license number 051917, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does John A. Knapp, M.D. prescribe under Medicare Part D?
In 2024, John A. Knapp, M.D. had 537 Medicare Part D claims for 170 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is John A. Knapp, M.D.'s MIPS final score?
The 2023 MIPS final score is 96.8 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.