Dr. Ruben Guzman Jr Jr., MD
- Medicare services, 2024
- 82
- Medicare patients, 2024
- 62
- Part D claims, 2024
- 139
- Hospital affiliations
- 6
- Medical groups
- 4
- Practice address
- 12401 Washington Blvd, Whittier, CA 90602
- Practice phone
- Call (562) 698-0811
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Guzman Jr'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. Ruben Guzman Jr Jr. is an emergency medicine physician in Whittier, California
Dr. Guzman Jr practices at PIH Health Whittier Hospital in Whittier, California, part of PIH Health.
Dr. Guzman Jr's NPI, 1174142533, was assigned on April 15, 2020. Dr. Guzman Jr graduated from Keck School of Medicine of USC in 2020. Dr. Guzman Jr holds California license A184194.
- NPI
- 1174142533NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547675290
- NPI enumeration date
- April 15, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 698-0811
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruben Guzman Jr Jr. practices at PIH Health Whittier Hospital in Whittier, California
Dr. Guzman Jr's primary practice is PIH Health Whittier Hospital, at 12401 Washington Blvd, Whittier, CA 90602 in Los Angeles County. The practice phone is (562) 698-0811.
- PIH Health Whittier Hospital12401 Washington Blvd, Whittier, CA 90602 · Los Angeles CountyPhone(562) 698-0811
Source: Dmand AI Affiliation Data
Dr. Ruben Guzman Jr Jr. is affiliated with 6 sites of care and 4 medical groups
Dr. Guzman Jr's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dr. Guzman Jr is also affiliated with Los Angeles General Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Guzman Jr to 4 more hospitals 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 Dr. Ruben Guzman Jr Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Guzman Jr practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| PIH Health Whittier Hospital | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruben Guzman Jr Jr. is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Guzman Jr's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Guzman Jr is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Guzman Jr
Counts of emergency medicine physicians 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. Ruben Guzman Jr Jr. billed Medicare for 82 services in 2024
CMS data shows 82 Medicare services from Dr. Guzman Jr across 3 procedure codes in 2024, for 62 Medicare patients. Medicare paid $8,499 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Guzman Jr's Medicare services by type, 2024
- Office and hospital visits57
- Tests and treatments25
Dr. Guzman Jr compared with the California median for emergency medicine physicians, 2024
- Dr. Guzman Jr
- California median
- Medicare services
- 82vs 26569% below
- Medicare patients
- 62vs 24374% below
- Part D claims
- 22vs 6265% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Guzman Jr's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Guzman Jr and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ruben Guzman Jr Jr. treated 62 Medicare patients in 2024, average age 76
CMS counts 62 Medicare patients who saw Dr. Guzman Jr in 2024. The largest group is 65 to 74, with 20 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 73% are also on Medicaid. Their average risk score is 2.79, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Guzman Jr's median patient age at 45, with 58% women.
Dr. Guzman Jr's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Guzman Jr's Medicare patients by sex, 2024
- Women4674%
- Men1626%
Chronic conditions among Dr. Guzman Jr's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes53%
- Chronic kidney disease39%
- Anxiety37%
- Heart failure37%
- Depression35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Guzman Jr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ruben Guzman Jr Jr. wrote 139 Medicare Part D claims in 2024
In 2024, Dr. Guzman Jr wrote 139 Medicare Part D claims for 90 patients. 94% of them were for generic drugs. CMS names the drug for 22 of them, across 1 drug with 11 or more claims each, at $65 in total drug cost.
Dr. Guzman Jr's Part D claims by kind of drug, 2024
- Generic131 claims94%
- Brand-name and other8 claims6%
Dr. Guzman Jr's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Guzman Jr's Part D claims, 2024
- Antibiotics39%54 of 139 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Ruben Guzman Jr Jr. takes part in Medicare
Dr. Guzman Jr 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)
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Dr. Ruben Guzman Jr Jr. graduated from Keck School of Medicine of USC
Dr. Guzman Jr graduated from Keck School of Medicine of USC in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Ruben Guzman Jr Jr. accepts plans from 1 insurance carrier
Dr. Guzman Jr is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Ruben Guzman Jr 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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| 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. Ruben Guzman Jr 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 Dr. Ruben Guzman Jr Jr.'s NPI number?
Dr. Ruben Guzman Jr Jr.'s NPI number is 1174142533. It was assigned on April 15, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruben Guzman Jr Jr.?
Dr. Ruben Guzman Jr Jr. is an emergency medicine physician in Whittier, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Ruben Guzman Jr Jr. practice?
Dr. Guzman Jr practices at 12401 Washington Blvd, Whittier, CA 90602. Dr. Guzman Jr's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dmand AI also links Dr. Guzman Jr to 4 hospitals and 3 medical groups.
What is Dr. Ruben Guzman Jr Jr.'s office phone number?
The practice phone on file for Dr. Guzman Jr is (562) 698-0811.
What is Dr. Ruben Guzman Jr Jr.'s medical license number?
Dr. Guzman Jr holds California license A184194.
Which hospitals is Dr. Ruben Guzman Jr Jr. affiliated with?
Dr. Guzman Jr practices at PIH Health Whittier Hospital in Whittier, California. Dr. Guzman Jr is also affiliated with Los Angeles General Medical Center. Dmand AI links Dr. Guzman Jr to 4 more hospitals.
What medical group is Dr. Ruben Guzman Jr Jr. part of?
Dr. Guzman Jr is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Guzman Jr to 3 more medical groups.
Does Dr. Ruben Guzman Jr Jr. accept Medicare?
Yes. CMS data shows Dr. Guzman Jr billed Medicare for 82 services in 2024, and Dr. Guzman Jr accepts Medicare assignment.
How many Medicare patients does Dr. Ruben Guzman Jr Jr. see?
CMS counts 62 Medicare patients who saw Dr. Guzman Jr in 2024, with an average age of 76.
What services does Dr. Ruben Guzman Jr Jr. bill to Medicare?
In 2024, Dr. Guzman Jr's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Show 4 more questionsShow fewer questions
Where did Dr. Ruben Guzman Jr Jr. go to medical school?
Dr. Guzman Jr graduated from Keck School of Medicine of USC in 2020.
What drugs does Dr. Ruben Guzman Jr Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Guzman Jr's most prescribed drugs by claims were Ciprofloxacin HCl.
How long has Dr. Ruben Guzman Jr Jr. been practicing?
Dr. Guzman Jr graduated from medical school in 2020, 6 years ago.
What insurance does Dr. Ruben Guzman Jr Jr. accept?
Dr. Guzman Jr is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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