Dr. Johnathan P. Pak, MD
- Medicare services, 2024
- 167
- Medicare patients, 2024
- 266
- Hospital affiliations
- 1
- Industry payments
- $15
- Medical groups
- 2
- Practice address
- 400 Forest Avenue, Palo Alto, CA 94301
- Practice phone
- Call (650) 324-0600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Waverley Surgery Center
Surgery Center - Medicare-Certified · Palo Alto, California
Find Dr. Pak'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. Johnathan P. Pak is an anesthesiologist in Palo Alto, California
Dr. Pak practices at Waverley Surgery Center in Palo Alto, California.
Dr. Pak's NPI, 1992723456, was assigned on July 17, 2006. Dr. Pak graduated from University of Rochester Medical Center in 2000. Dr. Pak holds California license A76875.
- NPI
- 1992723456NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345217915
- NPI enumeration date
- July 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 324-0600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Johnathan P. Pak practices at Waverley Surgery Center in Palo Alto, California
Dr. Pak's primary practice is Waverley Surgery Center, at 400 Forest Avenue, Palo Alto, CA 94301. The practice phone is (650) 324-0600.
- Waverley Surgery Center400 Forest Avenue, Palo Alto, CA 94301Phone(650) 324-0600
Source: Dmand AI Affiliation Data
Dr. Johnathan P. Pak is affiliated with 2 sites of care and 2 medical groups
Dr. Pak's primary practice is Waverley Surgery Center in Palo Alto, California. Dr. Pak is also affiliated with Good Samaritan Hospital. The medical group on file is G2 Anesthesia. Dmand AI also links Dr. Pak to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Johnathan P. Pak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pak practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Waverley Surgery Center | 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. Johnathan P. Pak is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Pak's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Pak is board certified in anesthesiology by the American Board of Anesthesiology. Dr. Pak is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Pak
Counts of anesthesiologists 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. Johnathan P. Pak billed Medicare for 167 services in 2024
CMS data shows 167 Medicare services from Dr. Pak across 4 procedure codes in 2024, for 266 Medicare patients. Medicare paid $19,173 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Pak compared with the California median for anesthesiologists, 2024
- Dr. Pak
- California median
- Medicare services
- 167vs 722.3 times
- Medicare patients
- 266vs 14386% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Pak'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. Pak?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pak and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Johnathan P. Pak treated 266 Medicare patients in 2024, average age 75
CMS counts 266 Medicare patients who saw Dr. Pak in 2024. The largest group is 65 to 74, with 127 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Pak's median patient age at 64, with 55% women.
Dr. Pak's Medicare patients by age, 2024
Dr. Pak's Medicare patients by sex, 2024
- Women15960%
- Men10740%
Chronic conditions among Dr. Pak's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis39%
- Diabetes29%
- Ischemic heart disease27%
- Chronic kidney disease23%
- Osteoporosis20%
- Atrial fibrillation18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Johnathan P. Pak takes part in Medicare
Dr. Pak 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. Johnathan P. Pak received $15 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Pak from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Ferring Pharmaceuticals Inc. paid the most, $15.
Companies that paid Dr. Pak the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Johnathan P. Pak graduated from University of Rochester Medical Center
Dr. Pak graduated from University of Rochester Medical Center in 2000.
- Medical school
- Board certified in anesthesiology
- Board certified in pediatric anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Johnathan P. Pak accepts plans from 6 insurance carriers
Dr. Pak is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- United Healthcare
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- HCSC
Plan types Dr. Pak accepts, by number of carriers
- PPO3
- Medicare2
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Johnathan P. Pak'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| 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. Johnathan P. Pak
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. Johnathan P. Pak's NPI number?
Dr. Johnathan P. Pak's NPI number is 1992723456. It was assigned on July 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Johnathan P. Pak?
Dr. Johnathan P. Pak is an anesthesiologist in Palo Alto, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Johnathan P. Pak practice?
Dr. Pak practices at 400 Forest Avenue, Palo Alto, CA 94301. Dr. Pak's primary practice is Waverley Surgery Center in Palo Alto, California. Dmand AI also links Dr. Pak to 1 medical group.
What is Dr. Johnathan P. Pak's office phone number?
The practice phone on file for Dr. Pak is (650) 324-0600.
What is Dr. Johnathan P. Pak's medical license number?
Dr. Pak holds California license A76875.
Which hospitals is Dr. Johnathan P. Pak affiliated with?
Dr. Pak is affiliated with Good Samaritan Hospital.
What medical group is Dr. Johnathan P. Pak part of?
Dr. Pak is linked to G2 Anesthesia. Dmand AI links Dr. Pak to 1 more medical group.
Does Dr. Johnathan P. Pak accept Medicare?
Yes. CMS data shows Dr. Pak billed Medicare for 167 services in 2024, and Dr. Pak accepts Medicare assignment.
How many Medicare patients does Dr. Johnathan P. Pak see?
CMS counts 266 Medicare patients who saw Dr. Pak in 2024, with an average age of 75.
Is Dr. Johnathan P. Pak board certified?
Yes. Dr. Pak is board certified in anesthesiology by the American Board of Anesthesiology.
Show 5 more questionsShow fewer questions
What services does Dr. Johnathan P. Pak bill to Medicare?
In 2024, Dr. Pak's most billed Medicare services were anesthesia (00142), anesthesia (00811) and anesthesia (00731).
Where did Dr. Johnathan P. Pak go to medical school?
Dr. Pak graduated from University of Rochester Medical Center in 2000.
Has Dr. Johnathan P. Pak received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Pak from 1 company from 2024 to 2024. The largest total came from Ferring Pharmaceuticals Inc.
How long has Dr. Johnathan P. Pak been practicing?
Dr. Pak graduated from medical school in 2000, 26 years ago.
What insurance does Dr. Johnathan P. Pak accept?
Dr. Pak is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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