Katherine Stolarz, D.O.
Family Medicine Physician · Baltimore, MD
Katherine Stolarz, D.O. is a family medicine physician with a practice address in Baltimore, Maryland, and NPI 1912264441, issued on Apr 22, 2012. Check the license (Maryland H0079549, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Katherine Stolarz
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- H0079549 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9101 Franklin Square Dr Ste 300, Baltimore, MD 21237
- Phone
- (443) 777-2000
- Enumerated
- Apr 22, 2012
- Record last updated
- Jun 26, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (866) 857-9388
- Medicare enrollment
- Enrolled (PECOS I20150915001490); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,912 in Maryland → Look up another NPI →
Also registered at 9101 Franklin Square Dr Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Brodine, M.D.Family Medicine Physician1467987446
- Lauren Drake, M.D.Family Medicine Physician1538506779
- Jefferson LustreStudent in an Organized Health Care Education/Training Program1760293062
- Abigail Meckes, PA-CMedical Physician Assistant1124201066
- Wai Sin, FNP-BCFamily Nurse Practitioner1881443364
Verify Katherine Stolarz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license H0079549Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average family medicine physician in 2024
1,258 Medicare Part D claims for 104 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 33 claims were for opioids.
Most prescribed
- Atorvastatin Calcium100 claims
- Amlodipine Besylate64 claims
- Hydrochlorothiazide45 claims
- Metformin Hcl44 claims
- Famotidine40 claims
- Losartan Potassium40 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): 80.2 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).
Bills Medicare through one group practice
- Medstar Medical Group II LLCGlen Burnie, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Stolarz among 1,912 family medicine physician records in Maryland
Katherine Stolarz, D.O. is one of 1,912 family medicine physician records with a practice address in Maryland. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 70% of them.
- NPI issued2012 · 70% of these records are older, 28% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2012 · median 2004 among the 1,141 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Maryland
There are 1,912 family medicine physician records in Maryland.
All 1,912 in Maryland → Every provider in Baltimore → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nancy Barr, M.D.Rosedale, MD 212371881636595
- Florence Deza, M.D.Baltimore, MD 212371659340560
- Michael Dwyer, M.D.Baltimore, MD 212371457320939
- Maryellen Goodell, MDBaltimore, MD 212371841244167
- Yoon Kim, MDBaltimore, MD 212371003893116
- Joyce KingBaltimore, MD 212371851360440
- Jamshid Mian, MDBaltimore, MD 212371538143953
- John NiehoffBaltimore, MD 212371447229349
Common questions
What is Katherine Stolarz, D.O.'s NPI number?
Katherine Stolarz, D.O.'s National Provider Identifier (NPI) is 1912264441, issued on Apr 22, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Stolarz, D.O. located?
The NPPES record lists a practice address at 9101 Franklin Square Dr Ste 300, Baltimore, MD, 21237. Phone: (443) 777-2000. Providers update this record themselves, so call before visiting.
How can I verify Katherine Stolarz, D.O.'s license?
NPPES lists Maryland license number H0079549, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Stolarz, D.O. prescribe under Medicare Part D?
In 2024, Katherine Stolarz, D.O. had 1,258 Medicare Part D claims for 104 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Katherine Stolarz, D.O.'s MIPS final score?
The 2023 MIPS final score is 80.2 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.