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Dr. Petruska Geammette Maak, MD
NPI1891991246
- Publications
- 1
- Hospital affiliations
- 1
- Medical group
- 1
- Insurance carriers
- 1
- State license
- 1
- Practice address
- 380 West MacArthur Boulevard, Oakland, CA 94609
- Practice phone
- Call (510) 251-0121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Addiction Medicine & Recovery Services at Oakland Medical Center
Outpatient Addiction Treatment · Oakland, California
Find Dr. Maak'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. Petruska Geammette Maak is a pediatrician in Oakland, California
Dr. Maak practices at Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California.
Dr. Maak's NPI, 1891991246, was assigned on June 22, 2007. Dr. Maak graduated from Central University of Venezuela in 1999. Dr. Maak holds California license A98658.
NPI and contact details
- NPI
- 1891991246NPI Registry (opens in a new tab)
- NPI enumeration date
- June 22, 2007
- NPI status
- Active
- Practice phone
- (510) 251-0121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Petruska Geammette Maak practices at Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California
Dr. Maak's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center, at 380 West MacArthur Boulevard, Oakland, CA 94609. The practice phone is (510) 251-0121.
- Addiction Medicine & Recovery Services at Oakland Medical Center380 West MacArthur Boulevard, Oakland, CA 94609Phone(510) 251-0121
Source: Dmand AI Affiliation Data
Dr. Petruska Geammette Maak is affiliated with 2 sites of care and 1 medical group
Dr. Maak's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California. Dr. Maak is also affiliated with Santa Clara Valley Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Addiction Medicine & Recovery Services at Oakland Medical CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Petruska Geammette Maak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maak practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Addiction Medicine & Recovery Services at Oakland Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Petruska Geammette Maak is one of 8,236 pediatricians in California
Pediatrics is Dr. Maak's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Maak is board certified in neonatal-perinatal medicine by the American Board of Pediatrics. Dr. Maak is licensed in California.
Specialties and state licenses
- Pediatrics, CaliforniaPrimary
Pediatricians near Dr. Maak
Counts of pediatricians 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. Petruska Geammette Maak's patients have a median age of 32
Across all payers, Dmand AI patient panel data puts Dr. Maak's median patient age at 32, with 97% women.
Dr. Maak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 32
Patient panel by sex, all payers
- Women97%
- Men3%
Source: Dmand AI Patient Panel Data
Dr. Petruska Geammette Maak has 1 publication on record
Dmand AI links 1 paper to Dr. Maak in 2013. Dr. Maak's most frequent co-authors are Louis Halamek, MD, Christian Anton Kunder, MD, PhD and Michael Dominic Scahill, MBA, MD.
Papers1
Dr. Maak's most frequent co-authors
- Louis Halamek, MD1 shared paper
- Christian Anton Kunder, MD, PhD1 shared paper
- Michael Dominic Scahill, MBA, MD1 shared paper
Recent publications by Dr. Maak
See who Dr. Maak researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Maak works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Petruska Geammette Maak graduated from Central University of Venezuela
Dr. Maak graduated from Central University of Venezuela in 1999.
- Medical school
- Board certified in neonatal-perinatal medicine
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Petruska Geammette Maak accepts plans from 1 insurance carrier
Dr. Maak is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Maak accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Petruska Geammette Maak'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 |
| 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. Petruska Geammette Maak
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. Petruska Geammette Maak's NPI number?
Dr. Petruska Geammette Maak's NPI number is 1891991246. It was assigned on June 22, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Petruska Geammette Maak?
Dr. Petruska Geammette Maak is a pediatrician in Oakland, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Petruska Geammette Maak practice?
Dr. Maak practices at 380 West MacArthur Boulevard, Oakland, CA 94609. Dr. Maak's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California.
What is Dr. Petruska Geammette Maak's office phone number?
The practice phone on file for Dr. Maak is (510) 251-0121.
What is Dr. Petruska Geammette Maak's medical license number?
Dr. Maak holds California license A98658.
Which hospitals is Dr. Petruska Geammette Maak affiliated with?
Dr. Maak is affiliated with Santa Clara Valley Medical Center.
What medical group is Dr. Petruska Geammette Maak part of?
Dr. Maak is linked to The Permanente Medical Group, Inc.
Is Dr. Petruska Geammette Maak board certified?
Yes. Dr. Maak is board certified in neonatal-perinatal medicine by the American Board of Pediatrics.
Where did Dr. Petruska Geammette Maak go to medical school?
Dr. Maak graduated from Central University of Venezuela in 1999.
How long has Dr. Petruska Geammette Maak been practicing?
Dr. Maak graduated from medical school in 1999, 27 years ago.
Show 3 more questionsShow fewer questions
Does Dr. Petruska Geammette Maak do research?
Dmand AI links 1 publication to Dr. Maak.
Who does Dr. Petruska Geammette Maak publish with?
Dr. Maak's most frequent co-authors are Louis Halamek, MD (1 shared paper), Christian Anton Kunder, MD, PhD (1 shared paper) and Michael Dominic Scahill, MBA, MD (1 shared paper).
What insurance does Dr. Petruska Geammette Maak accept?
Dr. Maak is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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