Dr. John Joseph Pack, MD
- Medicare services, 2024
- 13,486
- Medicare patients, 2024
- 436
- Part D claims, 2024
- 11,225
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 4650 Lincoln Blvd, Marina Del Rey, CA 90292
- Practice phone
- Call (310) 823-8911
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Pack'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. John Joseph Pack is an internist in Marina Del Rey, California
Dr. Pack practices at Cedars-Sinai Marina Hospital in Marina Del Rey, California, part of Cedars-Sinai Health System.
Dr. Pack's NPI, 1184654972, was assigned on July 4, 2006. Dr. Pack graduated from Rutgers New Jersey Medical School in 1991. Dr. Pack holds California license G078330.
- NPI
- 1184654972NPI Registry (opens in a new tab)
- NPI enumeration date
- July 4, 2006
- NPI status
- Active
- Practice phone
- (310) 823-8911
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John Joseph Pack practices at Cedars-Sinai Marina Hospital in Marina Del Rey, California
Dr. Pack's primary practice is Cedars-Sinai Marina Hospital, at 4650 Lincoln Blvd, Marina Del Rey, CA 90292 in Los Angeles County. The practice phone is (310) 823-8911.
- Cedars-Sinai Marina Hospital4650 Lincoln Blvd, Marina Del Rey, CA 90292 · Los Angeles CountyPhone(310) 823-8911
Source: Dmand AI Affiliation Data
Dr. John Joseph Pack is affiliated with 2 sites of care and 2 medical groups
Dr. Pack's primary practice is Cedars-Sinai Marina Hospital in Marina Del Rey, California, part of Cedars-Sinai Health System. The medical group on file is Liane Zwetzich M.D. Dmand AI also links Dr. Pack to 1 more group practice or clinic 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 Dr. John Joseph Pack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pack practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedars-Sinai Marina Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Joseph Pack is one of 16,751 internists in California
Internal medicine is Dr. Pack's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Pack is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Pack's licenses on file in 2 states: California and Colorado.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Colorado license
Clinical focus
Dmand AI lists acid reflux, acute diabetes, acute respiratory failure, aneurysm, arthritis, asthma, atrial fibrillation and flutter and cellulitis among the conditions Dr. Pack treats.
Internists near Dr. Pack
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. John Joseph Pack billed Medicare for 13,486 services in 2024
CMS data shows 13,486 Medicare services from Dr. Pack across 22 procedure codes in 2024, for 436 Medicare patients. Medicare paid $919,925 for them.
Dr. Pack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 12,8752024: 12,875No change
- Lab and pathology
- 2023: 2222024: 2096%
- Surgery
- 2023: 1852024: 1765%
- Tests and treatments
- 2023: 1682024: 13818%
- Other services
- 2023: 802024: 8810%
Where Dr. Pack's Medicare services took place, 2024
- In an office1,1088%
- In a facility12,37892%
Dr. Pack compared with the California median for internists, 2024
- Dr. Pack
- California median
- Medicare services
- 13,486vs 36137.4 times
- Medicare patients
- 436vs 1512.9 times
- Part D claims
- 10,384vs 42124.7 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Pack'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. Pack?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pack and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Joseph Pack treated 436 Medicare patients in 2024, average age 76
CMS counts 436 Medicare patients who saw Dr. Pack in 2024. The largest group is 65 to 74, with 172 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 54% are also on Medicaid. Their average risk score is 2.82, 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. Pack's median patient age at 72, with 48% women.
Dr. Pack's Medicare patients by age, 2024
Dr. Pack's Medicare patients by sex, 2024
- Women22953%
- Men20747%
Chronic conditions among Dr. Pack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis64%
- Diabetes51%
- Mood disorders50%
- Anxiety47%
- Depression47%
- Chronic kidney disease39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Joseph Pack wrote 11,225 Medicare Part D claims in 2024
In 2024, Dr. Pack wrote 11,225 Medicare Part D claims for 352 patients. 82% of them were for generic drugs. CMS names the drug for 10,384 of them, across 171 drugs with 11 or more claims each, at $754,492 in total drug cost. In 2023, CMS named 10,815 claims across 177 drugs.
Dr. Pack's Part D claims by kind of drug, 2024
- Generic9,258 claims82%
- Brand-name1,940 claims17%
- Other27 claims0%
Dr. Pack'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. Pack's Part D claims, 2024
- Opioids3%386 of 11,225 claims
- Antibiotics2%262 of 11,225 claims
- Antipsychotics, patients 65 and over3%289 of 11,225 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 10,8152024: 10,3844%
Drugs named by CMS: 171 in 2024, 177 in 2023.
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
Dr. John Joseph Pack scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Pack for performance year 2024, reported individually.
- MIPS final score, 2024
- 75 of 100
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John Joseph Pack received $628 in industry payments from 2021 to 2022
CMS Open Payments shows 5 general payments to Dr. Pack from 2 drug and device companies from 2021 to 2022. Food and beverage make up the largest share, 100% of the total. Johnson & Johnson Vision Care, Inc. paid the most, $504.
General payments to Dr. Pack by program year, 2021 to 2022
Companies that paid Dr. Pack the most, 2021 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Joseph Pack graduated from Rutgers New Jersey Medical School
Dr. Pack graduated from Rutgers New Jersey Medical School in 1991.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. John Joseph Pack'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 | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. John Joseph Pack
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. John Joseph Pack's NPI number?
Dr. John Joseph Pack's NPI number is 1184654972. It was assigned on July 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Joseph Pack?
Dr. John Joseph Pack is an internist in Marina Del Rey, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Joseph Pack practice?
Dr. Pack practices at 4650 Lincoln Blvd, Marina Del Rey, CA 90292. Dr. Pack's primary practice is Cedars-Sinai Marina Hospital in Marina Del Rey, California, part of Cedars-Sinai Health System. Dmand AI also links Dr. Pack to 1 group practice or clinic and 1 medical group.
What is Dr. John Joseph Pack's office phone number?
The practice phone on file for Dr. Pack is (310) 823-8911.
What is Dr. John Joseph Pack's medical license number?
Dr. Pack holds California license G078330, one of the licenses on file in 2 states.
Which states has Dr. John Joseph Pack been licensed in?
Dmand AI has state licenses on file for Dr. Pack in California (1994 to 2026) and Colorado (2025 to 2027).
Which hospitals is Dr. John Joseph Pack affiliated with?
Dr. Pack practices at Cedars-Sinai Marina Hospital in Marina Del Rey, California.
What medical group is Dr. John Joseph Pack part of?
Dr. Pack is linked to Liane Zwetzich M.D. Dmand AI links Dr. Pack to 1 more medical group.
Does Dr. John Joseph Pack accept Medicare?
Yes. CMS data shows Dr. Pack billed Medicare for 13,486 services in 2024.
What is Dr. John Joseph Pack's MIPS score?
Dr. Pack's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. John Joseph Pack see?
CMS counts 436 Medicare patients who saw Dr. Pack in 2024, with an average age of 76.
Is Dr. John Joseph Pack board certified?
Yes. Dr. Pack is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. John Joseph Pack bill to Medicare?
In 2024, Dr. Pack's most billed Medicare services were nursing facility care (99308), hospital inpatient care (99233) and nursing facility care (99309).
Where did Dr. John Joseph Pack go to medical school?
Dr. Pack graduated from Rutgers New Jersey Medical School in 1991.
What drugs does Dr. John Joseph Pack prescribe most?
In 2024 Medicare Part D data, Dr. Pack's most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Amlodipine Besylate.
Has Dr. John Joseph Pack received payments from drug or device companies?
CMS Open Payments shows $628 in general payments to Dr. Pack from 2 companies from 2021 to 2022. The largest total came from Johnson & Johnson Vision Care, Inc.
How long has Dr. John Joseph Pack been practicing?
Dr. Pack graduated from medical school in 1991, 35 years ago.
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