Kathryn Mandelbaum Johnson, PA-C
Medical Physician Assistant · Boulder, CO
Kathryn Mandelbaum Johnson, PA-C is a medical physician assistant with a practice address in Boulder, Colorado, and NPI 1205911328, issued on Oct 26, 2006. Check the license (Colorado 3470, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathryn Mandelbaum Johnson
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 3470 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2575 Spruce St, Boulder, CO 80302
- Phone
- (303) 449-3594
- Enumerated
- Oct 26, 2006
- Record last updated
- Oct 8, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (303) 449-3112
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,308 in Colorado → Look up another NPI →
Also registered at 2575 Spruce St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathryn Mandelbaum Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 3470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average medical physician assistant in 2024
48 Medicare Part D claims for 22 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
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.
Kathryn Mandelbaum Johnson among 1,308 medical physician assistant records in Colorado
Kathryn Mandelbaum Johnson, PA-C is one of 1,308 medical physician assistant records with a practice address in Colorado. 72% 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, 79% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2012 · 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 363AM0700X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Colorado
There are 1,308 medical physician assistant records in Colorado.
All 1,308 in Colorado → Every provider in Boulder → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Alison Moore, P.A.Boulder, CO 803021356326888
- Alenna Nilsen, MA OF TEACHINGBoulder, CO 803021134883515
- Jennifer Roland, P.A.Boulder, CO 803021275675993
- Moni Banerjee, PABoulder, CO 803031164551727
- Victoria Evelyn, PABoulder, CO 803011114332020
- Jennie Feiger, PA-CBoulder, CO 803031316198278
- William Hazell, PABoulder, CO 803031467463729
- Patricia Henman, PA-CBoulder, CO 803031730361445
Common questions
What is Kathryn Mandelbaum Johnson, PA-C's NPI number?
Kathryn Mandelbaum Johnson, PA-C's National Provider Identifier (NPI) is 1205911328, issued on Oct 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Mandelbaum Johnson, PA-C located?
The NPPES record lists a practice address at 2575 Spruce St, Boulder, CO, 80302. Phone: (303) 449-3594. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Mandelbaum Johnson, PA-C's license?
NPPES lists Colorado license number 3470, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does Kathryn Mandelbaum Johnson, PA-C prescribe under Medicare Part D?
In 2024, Kathryn Mandelbaum Johnson, PA-C had 48 Medicare Part D claims for 22 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.