Mackenzie L. Pennington, PA-C
- Medicare services, 2024
- 185
- Medicare patients, 2024
- 184
- Part D claims, 2024
- 360
- Hospital affiliations
- 1
- Medical groups
- 5
- Practice address
- 1225 Wilshire Boulevard, Los Angeles, CA 90017
- Practice phone
- Call (213) 977-2121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Mackenzie Pennington's professional email, personal email and mobile number
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Mackenzie L. Pennington is a physician assistant in Los Angeles, California
Mackenzie Pennington practices at PIH Health Good Samaritan Hospital in Los Angeles, California, part of PIH Health.
Mackenzie Pennington's NPI, 1992002570, was assigned on February 17, 2011. Mackenzie Pennington holds California license PA21245.
- NPI
- 1992002570NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911173935
- NPI enumeration date
- February 17, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (213) 977-2121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mackenzie L. Pennington practices at PIH Health Good Samaritan Hospital in Los Angeles, California
Mackenzie Pennington's primary practice is PIH Health Good Samaritan Hospital, at 1225 Wilshire Boulevard, Los Angeles, CA 90017 in Los Angeles County. The practice phone is (213) 977-2121.
- PIH Health Good Samaritan Hospital1225 Wilshire Boulevard, Los Angeles, CA 90017 · Los Angeles CountyPhone(213) 977-2121
Source: Dmand AI Affiliation Data
Mackenzie L. Pennington is affiliated with 1 site of care and 5 medical groups
Mackenzie Pennington's primary practice is PIH Health Good Samaritan Hospital in Los Angeles, California, part of PIH Health. The medical group on file is USC Care Medical Group. Dmand AI also links Mackenzie Pennington to 4 more 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 Mackenzie L. Pennington's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mackenzie Pennington practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| PIH Health Good Samaritan Hospital | Available with a free account |
| +4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Mackenzie L. Pennington is one of 11,482 physician assistants in California
Physician assistant is Mackenzie Pennington's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Mackenzie Pennington is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Mackenzie Pennington
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
Mackenzie L. Pennington billed Medicare for 185 services in 2024
CMS data shows 185 Medicare services from Mackenzie Pennington across 3 procedure codes in 2024, for 184 Medicare patients. Medicare paid $16,931 for them. Every service was in a facility, such as a hospital, rather than an office.
Mackenzie Pennington compared with the California median for physician assistants, 2024
- Mackenzie Pennington
- California median
- Medicare services
- 185vs 2049% below
- Medicare patients
- 184vs 10575% above
- Part D claims
- 197vs 24319% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Mackenzie Pennington'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mackenzie L. Pennington treated 184 Medicare patients in 2024, average age 73
CMS counts 184 Medicare patients who saw Mackenzie Pennington in 2024. The largest group is 65 to 74, with 69 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 63% are also on Medicaid. Their average risk score is 2.23, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mackenzie Pennington's median patient age at 43, with 57% women.
Mackenzie Pennington's Medicare patients by age, 2024
Mackenzie Pennington's Medicare patients by sex, 2024
- Women12166%
- Men6334%
Chronic conditions among Mackenzie Pennington's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes53%
- Chronic kidney disease39%
- Ischemic heart disease35%
- Heart failure28%
- COPD26%
Share of Medicare patients with each condition. A patient can have several.
Mackenzie Pennington's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mackenzie L. Pennington wrote 360 Medicare Part D claims in 2024
In 2024, Mackenzie Pennington wrote 360 Medicare Part D claims for 237 patients. 93% of them were for generic drugs. CMS names the drug for 197 of them, across 10 drugs with 11 or more claims each, at $1,122 in total drug cost.
Mackenzie Pennington's Part D claims by kind of drug, 2024
- Generic333 claims93%
- Brand-name and other27 claims8%
Mackenzie Pennington'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 Mackenzie Pennington's Part D claims, 2024
- Opioids13%47 of 360 claims
- Antibiotics34%122 of 360 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 Mackenzie L. Pennington takes part in Medicare
Mackenzie Pennington 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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Sources for Mackenzie L. Pennington'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) |
| 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 Mackenzie L. Pennington
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mackenzie L. Pennington's NPI number?
Mackenzie L. Pennington's NPI number is 1992002570. It was assigned on February 17, 2011, and it is active in the NPI Registry.
What does Mackenzie L. Pennington specialize in?
Mackenzie L. Pennington is a physician assistant in Los Angeles, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Mackenzie L. Pennington practice?
Mackenzie Pennington practices at 1225 Wilshire Boulevard, Los Angeles, CA 90017. Mackenzie Pennington's primary practice is PIH Health Good Samaritan Hospital in Los Angeles, California, part of PIH Health. Dmand AI also links Mackenzie Pennington to 4 medical groups.
What is Mackenzie L. Pennington's office phone number?
The practice phone on file for Mackenzie Pennington is (213) 977-2121.
What is Mackenzie L. Pennington's medical license number?
Mackenzie Pennington holds California license PA21245.
Which hospitals is Mackenzie L. Pennington affiliated with?
Mackenzie Pennington practices at PIH Health Good Samaritan Hospital in Los Angeles, California.
What medical group is Mackenzie L. Pennington part of?
Mackenzie Pennington is linked to USC Care Medical Group. Dmand AI links Mackenzie Pennington to 4 more medical groups.
Does Mackenzie L. Pennington accept Medicare?
Yes. CMS data shows Mackenzie Pennington billed Medicare for 185 services in 2024, and Mackenzie Pennington accepts Medicare assignment.
How many Medicare patients does Mackenzie L. Pennington see?
CMS counts 184 Medicare patients who saw Mackenzie Pennington in 2024, with an average age of 73.
What services does Mackenzie L. Pennington bill to Medicare?
In 2024, Mackenzie Pennington's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
What drugs does Mackenzie L. Pennington prescribe most?
In 2024 Medicare Part D data, Mackenzie Pennington's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Cephalexin.
How long has Mackenzie L. Pennington been practicing?
Mackenzie Pennington graduated from medical school in 2010, 16 years ago.
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