David Joseph Knapp, M.D.
Internal Medicine Physician · Sierra Vista, AZ
David Joseph Knapp, M.D. is an internal medicine physician with a practice address in Sierra Vista, Arizona, and NPI 1376735613, issued on Aug 10, 2007. Check the license (Arizona 23368, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- David Joseph Knapp
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 23368 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 75 Colonia DE Salud, Sierra Vista, AZ 85635
- Phone
- (520) 458-8145
- Enumerated
- Aug 10, 2007
- Record last updated
- Jun 10, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (877) 771-1056
- Medicare enrollment
- Enrolled (PECOS I20050330000923); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 75 Colonia DE Salud
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paul Holland, O.D.Optometrist1427021914
- Nusrum Iqbal, MDInternal Medicine Physician1538191929
- Jody Jenkins, M.D.Surgery Physician1609936533
Verify David Joseph Knapp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 23368Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% more Medicare Part D claims than the average internal medicine physician in 2024
4,597 Medicare Part D claims for 300 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 48 claims were for opioids.
Most prescribed
- Atorvastatin Calcium291 claims
- Amlodipine Besylate262 claims
- Lisinopril231 claims
- Levothyroxine Sodium215 claims
- Losartan Potassium203 claims
- Metformin Hcl124 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 MIPS final score for 2023 (Medicare payment program): 20.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $434.70
10 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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.
David Joseph Knapp among 2,853 internal medicine physician records in Arizona
David Joseph Knapp, M.D. is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 47% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1984 · median 2003 among the 1,643 with a school on file
- Record last updated2020 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 internal medicine physician records list a practice address in Sierra Vista
They are 45 of the 801 NPPES records with a practice address in Sierra Vista, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Sierra Vista → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Archana Bansal, M.D.Sierra Vista, AZ 856351881663615
- Eduardo Brown, M.D.Sierra Vista, AZ 856351376584359
- Seyed Sohail Habibi Pasdar, M.D.Sierra Vista, AZ 856351205241270
- John Herrod, MDSierra Vista, AZ 856351821022484
- Mohammad Hudeeb, M.D.Sierra Vista, AZ 856351164863569
- Nusrum Iqbal, MDSierra Vista, AZ 856351538191929
- James Keane, D.O.Sierra Vista, AZ 856351740442201
- Leo Lesueur, M.D.Sierra Vista, AZ 856351518985993
Common questions
What is David Joseph Knapp, M.D.'s NPI number?
David Joseph Knapp, M.D.'s National Provider Identifier (NPI) is 1376735613, issued on Aug 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David Joseph Knapp, M.D. located?
The NPPES record lists a practice address at 75 Colonia DE Salud, Sierra Vista, AZ, 85635. Phone: (520) 458-8145. Providers update this record themselves, so call before visiting.
How can I verify David Joseph Knapp, M.D.'s license?
NPPES lists Arizona license number 23368, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Joseph Knapp, M.D. prescribe under Medicare Part D?
In 2024, David Joseph Knapp, M.D. had 4,597 Medicare Part D claims for 300 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is David Joseph Knapp, M.D.'s MIPS final score?
The 2023 MIPS final score is 20.4 of 100. 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.