Stephen K. Baker, MD
Psychiatry Physician · Bryn Mawr, PA
Stephen K. Baker, MD is a psychiatry physician with a practice address in Bryn Mawr, Pennsylvania, and NPI 1235247180, issued on Aug 29, 2006. Check the license (Pennsylvania MD447155, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Stephen K. Baker
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- MD447155 PA
18661 SC
Self-reported in NPPES; status is on the state search - Practice location
- 850 W Lancaster Ave, Bryn Mawr, PA 19010
- Phone
- (843) 412-2160
- Enumerated
- Aug 29, 2006
- Record last updated
- Dec 17, 2024
- Fax
- (610) 520-1517
- Medicaid ID
- 186612 SC
- Medicare enrollment
- Enrolled (PECOS I20140812001424); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 850 W Lancaster Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jane Back, LMCSWClinical Social Worker1265981963
- Christine Bell PrinceCounselor1538290788
- Kate CornwellSocial Worker1487784740
- Courtney Davey, MA, LMFTMarriage & Family Therapist1588297469
- Kristal DefeoAddiction (Substance Use Disorder) Counselor1699222125
- Jessica Delucy, L.C.S.W.Clinical Social Worker1780011288
Verify Stephen K. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD447155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average psychiatry physician in 2024
372 Medicare Part D claims for 59 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Trazodone Hcl29 claims
- Clonazepam27 claims
- Atorvastatin Calcium23 claims
- Prazosin Hcl16 claims
- Amlodipine Besylate12 claims
- Quetiapine Fumarate12 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.
Industry payments in 2024: $70.78
4 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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.
Bills Medicare through one group practice
- Resources For Human Development, IncBryn Mawr, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen K. Baker among 2,662 psychiatry physician records in Pennsylvania
Stephen K. Baker, MD is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 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 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2006 · median 2003 among the 1,186 with a school on file
- Record last updated2024 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 psychiatry physician records list a practice address in Bryn Mawr
They are 63 of the 1,496 NPPES records with a practice address in Bryn Mawr, and 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in Bryn Mawr → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Angel Angelov, MDBryn Mawr, PA 190101861471757
- Marina Cooney, MDBryn Mawr, PA 190101982683207
- Stephen Mechanick, M.D.Bryn Mawr, PA 190101538265814
- David Nace, M.DBryn Mawr, PA 190101881699742
- Suzanne Reiss, M.D.Bryn Mawr, PA 190101851488365
- Thomas Riordan, M.D.Rosemont, PA 190101558479329
- Howard Rosen, MDBryn Mawr, PA 190101376587840
- Linda Ryan, MDBryn Mawr, PA 190101225098064
Common questions
What is Stephen K. Baker, MD's NPI number?
Stephen K. Baker, MD's National Provider Identifier (NPI) is 1235247180, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen K. Baker, MD located?
The NPPES record lists a practice address at 850 W Lancaster Ave, Bryn Mawr, PA, 19010. Phone: (843) 412-2160. Providers update this record themselves, so call before visiting.
How can I verify Stephen K. Baker, MD's license?
NPPES lists Pennsylvania license number MD447155, 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 Stephen K. Baker, MD prescribe under Medicare Part D?
In 2024, Stephen K. Baker, MD had 372 Medicare Part D claims for 59 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.