Dr. Marsha Baker, MD
- Publications
- 1
- Industry payments
- $142
- Affiliated sites
- 2
- Medical groups
- 2
- Insurance carriers
- 5
- Practice address
- 333 S Arroyo Parkway, 3rd Floor, Pasadena, CA 91105
- Practice phone
- Call (626) 440-9161
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Reproductive Surgical Associates - Pasadena
Surgery Center - Medicare-Certified · Pasadena, California
Find Dr. Baker's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Marsha Baker is an OB-GYN in Pasadena, California
Dr. Baker practices at Reproductive Surgical Associates - Pasadena in Pasadena, California.
Dr. Baker's NPI, 1851599328, was assigned on July 6, 2007. Dr. Baker graduated from Pritzker School of Medicine in 2003. Dr. Baker holds California license A90841.
- NPI
- 1851599328NPI Registry (opens in a new tab)
- NPI enumeration date
- July 6, 2007
- NPI status
- Active
- Practice phone
- (626) 440-9161
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Marsha Baker practices at Reproductive Surgical Associates - Pasadena in Pasadena, California
Dr. Baker's primary practice is Reproductive Surgical Associates - Pasadena, at 333 S Arroyo Parkway, 3rd Floor, Pasadena, CA 91105. The practice phone is (626) 440-9161.
- Reproductive Surgical Associates - Pasadena333 S Arroyo Parkway, 3rd Floor, Pasadena, CA 91105Phone(626) 440-9161
Source: Dmand AI Affiliation Data
Dr. Marsha Baker is affiliated with 2 sites of care and 2 medical groups
Dr. Baker's primary practice is Reproductive Surgical Associates - Pasadena in Pasadena, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Baker to 1 more community health center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marsha Baker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Baker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Reproductive Surgical Associates - Pasadena | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marsha Baker is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Baker's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Baker is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Baker is licensed in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
OB-GYNs near Dr. Baker
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Marsha Baker's patients have a median age of 40
Across all payers, Dmand AI patient panel data puts Dr. Baker's median patient age at 40, with 88% women.
Dr. Baker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women88%
- Men12%
Source: Dmand AI Patient Panel Data
Dr. Marsha Baker has 1 publication on record
Dmand AI links 1 paper to Dr. Baker in 2017.
Recent publications by Dr. Baker
See who Dr. Baker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Baker works with, so you can find a warm path to the right OB-GYNs.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marsha Baker received $142 in industry payments from 2020 to 2025
CMS Open Payments shows 6 general payments to Dr. Baker from 4 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Ferring Pharmaceuticals Inc. paid the most, $65.
General payments to Dr. Baker by program year, 2020 to 2025
Companies that paid Dr. Baker the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marsha Baker graduated from Pritzker School of Medicine
Dr. Baker graduated from Pritzker School of Medicine in 2003. Dr. Baker is a member of American College of Obstetricians and Gynecologists and ASRM.
- Medical school
- Board certified in obstetrics & gynecology
- Board certified in reproductive endocrinology/infertility
Source: Dmand AI Professional Profile Data
Dr. Marsha Baker accepts plans from 5 insurance carriers
Dr. Baker is in network with 5 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Kaiser Permanente
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
Plan types Dr. Baker accepts, by number of carriers
- Medicare4
- PPO4
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Marsha Baker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Marsha Baker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Marsha Baker's NPI number?
Dr. Marsha Baker's NPI number is 1851599328. It was assigned on July 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Marsha Baker?
Dr. Marsha Baker is an OB-GYN in Pasadena, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Marsha Baker practice?
Dr. Baker practices at 333 S Arroyo Parkway, 3rd Floor, Pasadena, CA 91105. Dr. Baker's primary practice is Reproductive Surgical Associates - Pasadena in Pasadena, California. Dmand AI also links Dr. Baker to 1 community health center and 1 medical group.
What is Dr. Marsha Baker's office phone number?
The practice phone on file for Dr. Baker is (626) 440-9161.
What is Dr. Marsha Baker's medical license number?
Dr. Baker holds California license A90841.
What medical group is Dr. Marsha Baker part of?
Dr. Baker is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Baker to 1 more medical group.
Is Dr. Marsha Baker board certified?
Yes. Dr. Baker is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
Where did Dr. Marsha Baker go to medical school?
Dr. Baker graduated from Pritzker School of Medicine in 2003.
Has Dr. Marsha Baker received payments from drug or device companies?
CMS Open Payments shows $142 in general payments to Dr. Baker from 4 companies from 2020 to 2025. The largest total came from Ferring Pharmaceuticals Inc.
How long has Dr. Marsha Baker been practicing?
Dr. Baker graduated from medical school in 2003, 23 years ago.
Does Dr. Marsha Baker do research?
Dmand AI links 1 publication to Dr. Baker.
What insurance does Dr. Marsha Baker accept?
Dr. Baker is in network with 5 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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