Marsha Sigrid Dietrich-McLean, D.O.
Hospitalist Physician · Erie, PA
Marsha Sigrid Dietrich-McLean, D.O. is a hospitalist physician with a practice address in Erie, Pennsylvania, and NPI 1003050915, issued on Apr 22, 2009. Check the license (Pennsylvania OS020402, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Marsha Sigrid Dietrich-McLean
- Credential
- D.O.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- OS020402 PA
Self-reported in NPPES; status is on the state search - Practice location
- 201 State St, Erie, PA 16550
- Phone
- (814) 877-4922
- Enumerated
- Apr 22, 2009
- Record last updated
- Jul 1, 2022
- Fax
- (814) 877-3622
- Medicare enrollment
- Enrolled (PECOS I20220816001244); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2018
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,424 in Pennsylvania → Look up another NPI →
Also registered at 201 State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandra AdamsStudent in an Organized Health Care Education/Training Program1841081197
- Joyce Adams, CRNACertified Registered Nurse Anesthetist1134148620
- Samra Ahmad, DOEmergency Medicine Physician1669365151
- Patricia Albaugh, RN-CRNFARegistered Nurse First Assistant1710029111
- John Albert, MDAnesthesiology Physician1992754618
- Nicholas Aloi, MDStudent in an Organized Health Care Education/Training Program1326898354
Verify Marsha Sigrid Dietrich-McLean in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS020402Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average hospitalist physician in 2024
251 Medicare Part D claims for 113 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 13 claims were for opioids.
Most prescribed
- Pantoprazole Sodium12 claims
- Prednisone12 claims
- Amoxicillin-Clavulanate Potass11 claims
- Carvedilol11 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): 79.6 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
- Regional Health Services IncErie, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marsha Sigrid Dietrich-McLean among 1,424 hospitalist physician records in Pennsylvania
Marsha Sigrid Dietrich-McLean, D.O. is one of 1,424 hospitalist physician records with a practice address in Pennsylvania. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 29% of them.
- NPI issued2009 · 29% of these records are older, 67% newer
- In a Medicare fileYes · 94% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2018 · median 2011 among the 1,236 with a school on file
- Record last updated2022 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Pennsylvania
There are 1,424 hospitalist physician records in Pennsylvania.
All 1,424 in Pennsylvania → Every provider in Erie → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Mark HeydErie, PA 165501750381133
- Michael Roesel, DOErie, PA 165501386139814
- Curt SenitaErie, PA 165501669606489
- Rajesh Govindasamy, M.D.Erie, PA 165071649372319
- Mrinalini Panthagani, M.DErie, PA 165021023422219
- Elizabeth Wise, DOErie, PA 165021619078136
- Bartu Avci, M.D.Altoona, PA 166011821736679
- Li Long, D.O.Altoona, PA 166011982260204
Common questions
What is Marsha Sigrid Dietrich-McLean, D.O.'s NPI number?
Marsha Sigrid Dietrich-McLean, D.O.'s National Provider Identifier (NPI) is 1003050915, issued on Apr 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Marsha Sigrid Dietrich-McLean, D.O. located?
The NPPES record lists a practice address at 201 State St, Erie, PA, 16550. Phone: (814) 877-4922. Providers update this record themselves, so call before visiting.
How can I verify Marsha Sigrid Dietrich-McLean, D.O.'s license?
NPPES lists Pennsylvania license number OS020402, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marsha Sigrid Dietrich-McLean, D.O. prescribe under Medicare Part D?
In 2024, Marsha Sigrid Dietrich-McLean, D.O. had 251 Medicare Part D claims for 113 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Marsha Sigrid Dietrich-McLean, D.O.'s MIPS final score?
The 2023 MIPS final score is 79.6 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.