John Robert Collen, PA-C
- Affiliated sites
- 4
- Medical groups
- 4
- State licenses
- 3
- Year NPI issued
- 2007
- Practice address
- 201 Dolores Ave, San Leandro, CA 94577
- Practice phone
- Call (510) 971-2489
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
CityHealth Urgent Care - San Leandro
Urgent Care Center · San Leandro, California
Find John Collen'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.
John Robert Collen is a physician assistant in San Leandro, California
John Collen practices at CityHealth Urgent Care - San Leandro in San Leandro, California.
John Collen's NPI, 1215058037, was assigned on April 2, 2007. John Collen holds South Carolina license 4777.
- NPI
- 1215058037NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103812409
- NPI enumeration date
- April 2, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 971-2489
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John Robert Collen practices at CityHealth Urgent Care - San Leandro in San Leandro, California
John Collen's primary practice is CityHealth Urgent Care - San Leandro, at 201 Dolores Ave, San Leandro, CA 94577. The practice phone is (510) 971-2489.
- CityHealth Urgent Care - San Leandro201 Dolores Ave, San Leandro, CA 94577Phone(510) 971-2489
Source: Dmand AI Affiliation Data
John Robert Collen is affiliated with 4 sites of care and 4 medical groups
John Collen's primary practice is CityHealth Urgent Care - San Leandro in San Leandro, California. The medical group on file is Circle Medical. Dmand AI also links John Collen to 3 more group practices and clinics and 3 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John Robert Collen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Collen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CityHealth Urgent Care - San Leandro | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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John Robert Collen is one of 11,482 physician assistants in California
Physician assistant is John Collen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has John Collen's licenses on file in 3 states: South Carolina, California and North Carolina.
Specialties and state licenses
- Physician assistant, South CarolinaPrimary
- Medical physician assistant, California
- North Carolina license
Physician assistants near John Collen
Counts of physician assistants 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
John Robert Collen's patients have a median age of 35
Across all payers, Dmand AI patient panel data puts John Collen's median patient age at 35, with 35% women.
John Collen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women35%
- Men63%
Source: Dmand AI Patient Panel Data
How John Robert Collen takes part in Medicare
John Collen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for John Robert Collen'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 |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 John Robert Collen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Robert Collen's NPI number?
John Robert Collen's NPI number is 1215058037. It was assigned on April 2, 2007, and it is active in the NPI Registry.
What does John Robert Collen specialize in?
John Robert Collen is a physician assistant in San Leandro, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does John Robert Collen practice?
John Collen practices at 201 Dolores Ave, San Leandro, CA 94577. John Collen's primary practice is CityHealth Urgent Care - San Leandro in San Leandro, California. Dmand AI also links John Collen to 3 group practices and clinics and 3 medical groups.
What is John Robert Collen's office phone number?
The practice phone on file for John Collen is (510) 971-2489.
What is John Robert Collen's medical license number?
John Collen holds South Carolina license 4777, one of the licenses on file in 3 states.
Which states has John Robert Collen been licensed in?
Dmand AI has state licenses on file for John Collen in South Carolina, California and North Carolina.
What medical group is John Robert Collen part of?
John Collen is linked to Circle Medical. Dmand AI links John Collen to 3 more medical groups.
Does John Robert Collen accept Medicare?
Yes. CMS lists John Collen as accepting Medicare assignment.
How long has John Robert Collen been practicing?
John Collen graduated from medical school in 2003, 23 years ago.
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