Kaitlyn Granstaff, MD
Internal Medicine Physician · Kansas City, MO
Kaitlyn Granstaff, MD is an internal medicine physician with a practice address in Kansas City, Missouri, and NPI 1649896218, issued on Jun 19, 2020. Check the license (Missouri 2023006399, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Kaitlyn Granstaff
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 2023006399 MO
2020016967 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4401 Wornall RD FL 9, Kansas City, MO 64111
- Phone
- (816) 932-5475
- Enumerated
- Jun 19, 2020
- Record last updated
- May 8, 2023
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 4401 Wornall RD FL 9
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evan O'Keefe, MDStudent in an Organized Health Care Education/Training Program1972131894
Verify Kaitlyn Granstaff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2023006399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
185 Medicare Part D claims for 44 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium18 claims
- Losartan Potassium15 claims
- Carvedilol14 claims
- Spironolactone12 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.
Kaitlyn Granstaff among 2,604 internal medicine physician records in Missouri
Kaitlyn Granstaff, MD is one of 2,604 internal medicine physician records with a practice address in Missouri. 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 2020, is newer than 75% of them.
- NPI issued2020 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2023 · 48% 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 Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
243 internal medicine physician records list a practice address in Kansas City
They are 243 of the 13,759 NPPES records with a practice address in Kansas City, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Kansas City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Calvin Cochran, M.D.Kansas City, MO 641111144229261
- Craig Dietz, D.O.Kansas City, MO 641111740247097
- Carl Dirks, MDKansas City, MO 641111003808437
- Anna Giocondo, MDKansas City, MO 641111881634111
- Anthony Gutierrez, MDKansas City, MO 641111558368381
- Kelley Howell, M.D.Kansas City, MO 641111356379770
- Tamayo Jacobs, MDKansas City, MO 641111447255005
- Kathy Kohler, MDKansas City, MO 641111134111487
Common questions
What is Kaitlyn Granstaff, MD's NPI number?
Kaitlyn Granstaff, MD's National Provider Identifier (NPI) is 1649896218, issued on Jun 19, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Kaitlyn Granstaff, MD located?
The NPPES record lists a practice address at 4401 Wornall RD FL 9, Kansas City, MO, 64111. Phone: (816) 932-5475. Providers update this record themselves, so call before visiting.
How can I verify Kaitlyn Granstaff, MD's license?
NPPES lists Missouri license number 2023006399, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kaitlyn Granstaff, MD prescribe under Medicare Part D?
In 2024, Kaitlyn Granstaff, MD had 185 Medicare Part D claims for 44 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.