Robert Alan Zimmerman Jr., PA-C
- Medicare patients, 2024
- 92
- Hospital affiliations
- 3
- Industry payments
- $15
- Medical groups
- 2
- State license
- 1
- Practice address
- 4300 West Memorial Road, Oklahoma City, OK 73120
- Practice phone
- Call (405) 755-1515
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Robert Zimmerman'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.
Robert Alan Zimmerman Jr. is a physician assistant in Oklahoma City, Oklahoma
Robert Zimmerman practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy.
Robert Zimmerman's NPI, 1376313643, was assigned on January 8, 2024. Robert Zimmerman holds Oklahoma license 5145.
- NPI
- 1376313643NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587106307
- NPI enumeration date
- January 8, 2024
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (405) 755-1515
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Robert Alan Zimmerman Jr. practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma
Robert Zimmerman's primary practice is Mercy Hospital Oklahoma City, at 4300 West Memorial Road, Oklahoma City, OK 73120 in Oklahoma County. The practice phone is (405) 755-1515.
- Mercy Hospital Oklahoma City4300 West Memorial Road, Oklahoma City, OK 73120 · Oklahoma CountyPhone(405) 755-1515
Source: Dmand AI Affiliation Data
Robert Alan Zimmerman Jr. is affiliated with 5 sites of care and 2 medical groups
Robert Zimmerman's primary practice is Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy. Robert Zimmerman is also affiliated with Mercy Hospital Logan County. The medical group on file is Mercy Clinic Oklahoma Communities. Dmand AI also links Robert Zimmerman to 1 more hospital, 2 group practices and clinics 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 Robert Alan Zimmerman Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Robert Zimmerman practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital Oklahoma City | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercy and 6.2K+ hospitals, with verified contacts in the same login.
Robert Alan Zimmerman Jr. is one of 1,545 physician assistants in Oklahoma
Physician assistant is Robert Zimmerman's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Robert Zimmerman is licensed in Oklahoma.
Specialties and state licenses
- Physician assistant, OklahomaPrimary
Physician assistants near Robert Zimmerman
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
Robert Alan Zimmerman Jr. treated 92 Medicare patients in 2024, average age 74
CMS counts 92 Medicare patients who saw Robert Zimmerman in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Robert Zimmerman's median patient age at 70, with 58% women.
Robert Zimmerman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Robert Zimmerman's Medicare patients by sex, 2024
- Women5863%
- Men3437%
Chronic conditions among Robert Zimmerman's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease41%
- Chronic kidney disease37%
- Anxiety36%
- Diabetes32%
- Depression30%
Share of Medicare patients with each condition. A patient can have several.
Robert Zimmerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Robert Alan Zimmerman Jr. takes part in Medicare
Robert Zimmerman 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)
Robert Alan Zimmerman Jr. received $15 in industry payments in 2025
CMS Open Payments shows 1 general payment to Robert Zimmerman from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bioventus LLC paid the most, $15.
Companies that paid Robert Zimmerman the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Robert Alan Zimmerman Jr.'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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 Robert Alan Zimmerman Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Robert Alan Zimmerman Jr.'s NPI number?
Robert Alan Zimmerman Jr.'s NPI number is 1376313643. It was assigned on January 8, 2024, and it is active in the NPI Registry.
What does Robert Alan Zimmerman Jr. specialize in?
Robert Alan Zimmerman Jr. is a physician assistant in Oklahoma City, Oklahoma. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Robert Alan Zimmerman Jr. practice?
Robert Zimmerman practices at 4300 West Memorial Road, Oklahoma City, OK 73120. Robert Zimmerman's primary practice is Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy. Dmand AI also links Robert Zimmerman to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Robert Alan Zimmerman Jr.'s office phone number?
The practice phone on file for Robert Zimmerman is (405) 755-1515.
What is Robert Alan Zimmerman Jr.'s medical license number?
Robert Zimmerman holds Oklahoma license 5145.
Which hospitals is Robert Alan Zimmerman Jr. affiliated with?
Robert Zimmerman practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma. Robert Zimmerman is also affiliated with Mercy Hospital Logan County. Dmand AI links Robert Zimmerman to 1 more hospital.
What medical group is Robert Alan Zimmerman Jr. part of?
Robert Zimmerman is linked to Mercy Clinic Oklahoma Communities. Dmand AI links Robert Zimmerman to 1 more medical group.
Does Robert Alan Zimmerman Jr. accept Medicare?
Yes. CMS lists Robert Zimmerman as accepting Medicare assignment.
How many Medicare patients does Robert Alan Zimmerman Jr. see?
CMS counts 92 Medicare patients who saw Robert Zimmerman in 2024, with an average age of 74.
Has Robert Alan Zimmerman Jr. received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Robert Zimmerman from 1 company from 2025 to 2025. The largest total came from Bioventus LLC.
How long has Robert Alan Zimmerman Jr. been practicing?
Robert Zimmerman graduated from medical school in 2023, 3 years ago.
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