Dr. Rikki Bass Mullen, MD
- Medicare services, 2024
- 134
- Medicare patients, 2024
- 146
- Part D claims, 2024
- 187
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 200 Medical Plz, Los Angeles, CA 90024
- Practice phone
- Call (310) 794-9206
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Peter Morton UCLA Medical Building
Los Angeles, California
Find Dr. Mullen's professional email, personal email and mobile number
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Dr. Rikki Bass Mullen is an internist in Los Angeles, California
Dr. Mullen practices at Peter Morton UCLA Medical Building in Los Angeles, California.
Dr. Mullen's NPI, 1306266622, was assigned on April 25, 2014. Dr. Mullen graduated from Keck School of Medicine of USC in 2014. Dr. Mullen holds California license A138706.
- NPI
- 1306266622NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436425378
- NPI enumeration date
- April 25, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 794-9206
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rikki Bass Mullen practices at Peter Morton UCLA Medical Building in Los Angeles, California
Dr. Mullen's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.
- Peter Morton UCLA Medical Building200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rikki Bass Mullen is affiliated with 2 sites of care and 1 medical group
Dr. Mullen's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. The medical group on file is UCLA Medical Group. Dmand AI also links Dr. Mullen to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Rikki Bass Mullen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mullen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peter Morton UCLA Medical Building | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rikki Bass Mullen is one of 16,751 internists in California
Internal medicine is Dr. Mullen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mullen is board certified in internal medicine by the American Board of Internal Medicine. Dr. Mullen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic hypertension and lower back pain among the conditions Dr. Mullen treats.
Internists near Dr. Mullen
Counts of internists 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. Rikki Bass Mullen billed Medicare for 134 services in 2024
CMS data shows 134 Medicare services from Dr. Mullen across 3 procedure codes in 2024, for 146 Medicare patients. Medicare paid $3,089 for them.
Dr. Mullen's Medicare services by type, 2021 to 2024
- 2021
- 2024
- Tests and treatments
- 2021: 302024: 77157%
- Office and hospital visits
- 2021: 1362024: 5758%
- Other services
- 2021: 672024: 0100%
- Surgery
- 2021: 152024: 0100%
Where Dr. Mullen's Medicare services took place, 2024
- In an office5743%
- In a facility7757%
Dr. Mullen compared with the California median for internists, 2024
- Dr. Mullen
- California median
- Medicare services
- 134vs 36163% below
- Medicare patients
- 146vs 151Close to median
- Part D claims
- 47vs 42189% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Mullen'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.
Need commercial claims for Dr. Mullen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mullen and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rikki Bass Mullen treated 146 Medicare patients in 2024, average age 75
CMS counts 146 Medicare patients who saw Dr. Mullen in 2024. The largest group is 75 to 84, with 62 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.78, 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. Mullen's median patient age at 63, with 59% women.
Dr. Mullen's Medicare patients by age, 2024
Dr. Mullen's Medicare patients by sex, 2024
- Women8659%
- Men6041%
Chronic conditions among Dr. Mullen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Atrial fibrillation43%
- Ischemic heart disease35%
- Heart failure32%
- Chronic kidney disease31%
- Mood disorders29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mullen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women59%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rikki Bass Mullen wrote 187 Medicare Part D claims in 2024
In 2024, Dr. Mullen wrote 187 Medicare Part D claims for 73 patients. 92% of them were for generic drugs. CMS names the drug for 47 of them, across 3 drugs with 11 or more claims each, at $1,054 in total drug cost. In 2022, CMS named 31 claims across 2 drugs.
Dr. Mullen's Part D claims by kind of drug, 2024
- Generic172 claims92%
- Brand-name15 claims8%
Dr. Mullen'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. Mullen's Part D claims, 2024
- Antibiotics7%14 of 187 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 312024: 4752%
Drugs named by CMS: 3 in 2024, 2 in 2022.
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. Rikki Bass Mullen takes part in Medicare
Dr. Mullen 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. Rikki Bass Mullen graduated from Keck School of Medicine of USC
Dr. Mullen graduated from Keck School of Medicine of USC in 2014.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Rikki Bass Mullen accepts plans from 13 insurance carriers
Dr. Mullen is in network with 13 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Mullen accepts, by number of carriers
- PPO9
- HMO6
- Medicare6
- EPO3
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Rikki Bass Mullen'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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. Rikki Bass Mullen
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. Rikki Bass Mullen's NPI number?
Dr. Rikki Bass Mullen's NPI number is 1306266622. It was assigned on April 25, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Rikki Bass Mullen?
Dr. Rikki Bass Mullen is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Rikki Bass Mullen practice?
Dr. Mullen practices at 200 Medical Plz, Los Angeles, CA 90024. Dr. Mullen's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links Dr. Mullen to 1 group practice or clinic.
What is Dr. Rikki Bass Mullen's office phone number?
The practice phone on file for Dr. Mullen is (310) 794-9206.
What is Dr. Rikki Bass Mullen's medical license number?
Dr. Mullen holds California license A138706.
What medical group is Dr. Rikki Bass Mullen part of?
Dr. Mullen is linked to UCLA Medical Group.
Does Dr. Rikki Bass Mullen accept Medicare?
Yes. CMS data shows Dr. Mullen billed Medicare for 134 services in 2024, and Dr. Mullen accepts Medicare assignment.
How many Medicare patients does Dr. Rikki Bass Mullen see?
CMS counts 146 Medicare patients who saw Dr. Mullen in 2024, with an average age of 75.
Is Dr. Rikki Bass Mullen board certified?
Yes. Dr. Mullen is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Rikki Bass Mullen bill to Medicare?
In 2024, Dr. Mullen's most billed Medicare services were heart test or procedure (93793), office visit, established patient (99213) and office visit, established patient (99214).
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Where did Dr. Rikki Bass Mullen go to medical school?
Dr. Mullen graduated from Keck School of Medicine of USC in 2014.
What drugs does Dr. Rikki Bass Mullen prescribe most?
In 2024 Medicare Part D data, Dr. Mullen's most prescribed drugs by claims were Ipratropium Bromide, Gabapentin and Warfarin Sodium.
How long has Dr. Rikki Bass Mullen been practicing?
Dr. Mullen graduated from medical school in 2014, 12 years ago.
What insurance does Dr. Rikki Bass Mullen accept?
Dr. Mullen is in network with 13 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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