Dr. Darrell Dennis Walter, MD
- Medicare services, 2021
- 474
- Part D claims, 2022
- 98
- Industry payments
- $7,488
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 420 W Rowland St, Covina, CA 91723-2943
- Practice phone
- Call (626) 331-6411
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Magan Medical Clinic
Multi-specialty group site · Covina, California
Find Dr. Walter'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. Darrell Dennis Walter is a cardiologist in Long Beach, California
Dr. Walter practices at Magan Medical Clinic in Covina, California.
Dr. Walter's NPI, 1871552380, was assigned on March 22, 2006. Dr. Walter graduated from WashU Medicine in 1980. Dr. Walter's California license number on file is G49722.
- NPI
- 1871552380NPI Registry (opens in a new tab)
- NPI enumeration date
- March 22, 2006
- NPI status
- Active
- Practice phone
- (626) 331-6411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Darrell Dennis Walter practices in Covina and Long Beach
Dr. Walter's primary practice is Magan Medical Clinic, at 420 W Rowland St, Covina, CA 91723-2943. The practice phone is (626) 331-6411. The NPI Registry lists Dr. Walter's practice address as 2600 Redondo Ave, Long Beach, CA 90806.
- Magan Medical ClinicPrimary420 W Rowland St, Covina, CA 91723-2943Phone(626) 331-6411
- NPI Registry address2600 Redondo Ave, Long Beach, CA 90806 · Los Angeles CountyPhone(626) 331-6411
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Darrell Dennis Walter is affiliated with 1 site of care and 1 medical group
Dr. Walter's primary practice is Magan Medical Clinic in Covina, California. Dmand AI also links Dr. Walter to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Darrell Dennis Walter's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walter practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Magan Medical Clinic | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Darrell Dennis Walter is one of 2,375 cardiologists in California
Cardiovascular disease is Dr. Walter's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Walter is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Walter's licenses on file in 2 states: California and Colorado.
Specialties and state licenses
- Cardiovascular disease, CaliforniaPrimary
- Colorado license
Cardiologists near Dr. Walter
Counts of cardiologists 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. Darrell Dennis Walter billed Medicare for 474 services in 2021
CMS data shows 474 Medicare services from Dr. Walter across 13 procedure codes in 2021. Medicare paid $31,758 for them. Every service was in an office.
Dr. Walter's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Tests and treatments
- 2020: 4252021: 26637%
- Office and hospital visits
- 2020: 1742021: 9645%
- Drugs given in the office
- 2020: 772021: 6121%
- Other services
- 2020: 402021: 3220%
- Imaging
- 2020: 172021: 1912%
Dr. Walter compared with the California median for cardiologists, 2021
- Dr. Walter
- California median
- Medicare services
- 474vs 1,56070% below
- Part D claims
- 98vs 1,41093% below
Medians across 2,237 cardiologists in California with Dmand AI profiles that report each measure.
Dr. Walter's most billed Medicare procedure codes, 2021
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Darrell Dennis Walter's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Walter's median patient age at 76, with 54% women.
Dr. Walter's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Darrell Dennis Walter wrote 98 Medicare Part D claims in 2022
In 2022, Dr. Walter wrote 98 Medicare Part D claims. They cover 6 drugs, with $41,513 in total drug cost. In 2021, CMS named 2,190 claims across 32 drugs.
Dr. Walter's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 2,1902022: 9896%
Drugs named by CMS: 6 in 2022, 32 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Darrell Dennis Walter received $7,488 in industry payments from 2016 to 2023
CMS Open Payments shows 275 general payments to Dr. Walter from 25 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 93% of the total. Edwards Lifesciences Corporation paid the most, $1,346.
General payments to Dr. Walter by program year, 2016 to 2023
General payments to Dr. Walter by kind, 2016 to 2023
- Food and beverage$6,99593%
- Travel and lodging$4626%
- Education$310%
Companies that paid Dr. Walter the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Darrell Dennis Walter has 1 award and honors on record
Dmand AI lists 1 award for Dr. Walter.
Awards and honors for Dr. Walter
- Undated
- ACC Fellow
Source: Dmand AI Professional Profile Data
Dr. Darrell Dennis Walter graduated from WashU Medicine
Dr. Walter graduated from WashU Medicine in 1980. Dr. Walter is a member of ACC.
- Medical school
- Board certified in cardiovascular disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Darrell Dennis Walter accepts plans from 3 insurance carriers
Dr. Walter is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and Molina. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
Plan types Dr. Walter accepts, by number of carriers
- Medicare3
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Darrell Dennis Walter'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Darrell Dennis Walter
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. Darrell Dennis Walter's NPI number?
Dr. Darrell Dennis Walter's NPI number is 1871552380. It was assigned on March 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Darrell Dennis Walter?
Dr. Darrell Dennis Walter is a cardiologist in Long Beach, California. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Darrell Dennis Walter practice?
Dr. Walter practices at 420 W Rowland St, Covina, CA 91723-2943. Dr. Walter also practices at 2600 Redondo Ave, Long Beach, CA 90806. Dr. Walter's primary practice is Magan Medical Clinic in Covina, California. Dmand AI also links Dr. Walter to 1 medical group.
What is Dr. Darrell Dennis Walter's office phone number?
The practice phone on file for Dr. Walter is (626) 331-6411.
What is Dr. Darrell Dennis Walter's medical license number?
Dr. Walter's California license number on file is G49722, one of the licenses on file in 2 states.
Which states has Dr. Darrell Dennis Walter been licensed in?
Dmand AI has state licenses on file for Dr. Walter in California (1983 to 2024) and Colorado (1981 to 1983).
Does Dr. Darrell Dennis Walter accept Medicare?
Yes. CMS data shows Dr. Walter billed Medicare for 474 services in 2021.
Is Dr. Darrell Dennis Walter board certified?
Yes. Dr. Walter is board certified in cardiovascular disease by the American Board of Internal Medicine.
What services does Dr. Darrell Dennis Walter bill to Medicare?
In 2021, Dr. Walter's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93000) and injected or infused drug (J2785).
Where did Dr. Darrell Dennis Walter go to medical school?
Dr. Walter graduated from WashU Medicine in 1980.
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What drugs does Dr. Darrell Dennis Walter prescribe most?
In 2022 Medicare Part D data, Dr. Walter's most prescribed drugs by claims were Eliquis, Entresto and Amlodipine Besylate.
Has Dr. Darrell Dennis Walter received payments from drug or device companies?
CMS Open Payments shows $7,488 in general payments to Dr. Walter from 25 companies from 2016 to 2023. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Darrell Dennis Walter been practicing?
Dr. Walter graduated from medical school in 1980, 46 years ago.
What insurance does Dr. Darrell Dennis Walter accept?
Dr. Walter is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and Molina. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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