Madeleine Ma, PA-C
- Medicare services, 2024
- 14
- Medicare patients, 2024
- 34
- Part D claims, 2024
- 160
- Industry payments
- $758
- Affiliated sites
- 3
- Practice address
- 795 El Camino Real, Palo Alto, CA 94301
- Practice phone
- Call (650) 324-1832
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgery Center Palo Alto
Surgery Center - Medicare-Certified · Palo Alto, California
Find Madeleine Ma'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.
Madeleine Ma is a physician assistant in Palo Alto, California
Madeleine Ma practices at Surgery Center Palo Alto in Palo Alto, California.
Madeleine Ma's NPI, 1376158907, was assigned on September 10, 2020. Madeleine Ma holds California license PA58556.
- NPI
- 1376158907NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426464561
- NPI enumeration date
- September 10, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 324-1832
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Madeleine Ma practices at Surgery Center Palo Alto in Palo Alto, California
Madeleine Ma's primary practice is Surgery Center Palo Alto, at 795 El Camino Real, Palo Alto, CA 94301. The practice phone is (650) 324-1832.
- Surgery Center Palo Alto795 El Camino Real, Palo Alto, CA 94301Phone(650) 324-1832
Source: Dmand AI Affiliation Data
Madeleine Ma is affiliated with 3 sites of care and 3 medical groups
Madeleine Ma's primary practice is Surgery Center Palo Alto in Palo Alto, California. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Madeleine Ma to 2 more medical groups, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Madeleine Ma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Madeleine Ma practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgery Center Palo Alto | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Madeleine Ma is one of 11,482 physician assistants in California
Physician assistant is Madeleine Ma's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Madeleine Ma is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Clinical focus
Dmand AI lists acute sinusitis, acute skin infection, anxiety, conjunctivitis, ear eustachian tube disorders, fibromyalgia and chronic pain, lower back pain and minor injury on trunk among the conditions Madeleine Ma treats.
Physician assistants near Madeleine Ma
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
Madeleine Ma billed Medicare for 14 services in 2024
CMS data shows 14 Medicare services from Madeleine Ma across 1 procedure code in 2024, all of them office visits, for 34 Medicare patients. Medicare paid $1,000 for them. Every service was in an office.
Madeleine Ma compared with the California median for physician assistants, 2024
- Madeleine Ma
- California median
- Medicare services
- 14vs 20493% below
- Medicare patients
- 34vs 10568% below
- Part D claims
- 33vs 24386% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Madeleine Ma'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
Madeleine Ma treated 34 Medicare patients in 2024, average age 79
CMS counts 34 Medicare patients who saw Madeleine Ma in 2024. The largest group is 75 to 84, with 13 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Madeleine Ma's median patient age at 43, with 68% women.
Madeleine Ma's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Madeleine Ma's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Osteoporosis38%
Share of Medicare patients with each condition. A patient can have several.
Madeleine Ma'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
- Women68%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Madeleine Ma wrote 160 Medicare Part D claims in 2024
In 2024, Madeleine Ma wrote 160 Medicare Part D claims for 42 patients. 92% of them were for generic drugs. CMS names the drug for 33 of them, across 2 drugs with 11 or more claims each, at $238 in total drug cost.
Madeleine Ma's Part D claims by kind of drug, 2024
- Generic147 claims92%
- Brand-name13 claims8%
Madeleine Ma'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.
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
Madeleine Ma offers telehealth to Medicare patients
Madeleine Ma accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Madeleine Ma as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Madeleine Ma received $758 in industry payments from 2024 to 2025
CMS Open Payments shows 6 general payments to Madeleine Ma from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. ViiV Healthcare Company paid the most, $247.
General payments to Madeleine Ma by program year, 2024 to 2025
Companies that paid Madeleine Ma the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Madeleine Ma'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) |
| Industry payments | Open Payments (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 Madeleine Ma
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Madeleine Ma's NPI number?
Madeleine Ma's NPI number is 1376158907. It was assigned on September 10, 2020, and it is active in the NPI Registry.
What does Madeleine Ma specialize in?
Madeleine Ma is a physician assistant in Palo Alto, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Madeleine Ma practice?
Madeleine Ma practices at 795 El Camino Real, Palo Alto, CA 94301. Madeleine Ma's primary practice is Surgery Center Palo Alto in Palo Alto, California. Dmand AI also links Madeleine Ma to 2 medical groups, 1 group practice or clinic and 1 home health agency.
What is Madeleine Ma's office phone number?
The practice phone on file for Madeleine Ma is (650) 324-1832.
What is Madeleine Ma's medical license number?
Madeleine Ma holds California license PA58556.
What medical group is Madeleine Ma part of?
Madeleine Ma is linked to Palo Alto Foundation Medical Group. Dmand AI links Madeleine Ma to 2 more medical groups.
Does Madeleine Ma accept Medicare?
Yes. CMS data shows Madeleine Ma billed Medicare for 14 services in 2024, and Madeleine Ma accepts Medicare assignment.
Does Madeleine Ma offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Madeleine Ma as offering telehealth services.
How many Medicare patients does Madeleine Ma see?
CMS counts 34 Medicare patients who saw Madeleine Ma in 2024, with an average age of 79.
What services does Madeleine Ma bill to Medicare?
In 2024, Madeleine Ma's most billed Medicare services were office visit, established patient (99214).
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What drugs does Madeleine Ma prescribe most?
In 2024 Medicare Part D data, Madeleine Ma's most prescribed drugs by claims were Losartan Potassium and Amlodipine Besylate.
Has Madeleine Ma received payments from drug or device companies?
CMS Open Payments shows $758 in general payments to Madeleine Ma from 5 companies from 2024 to 2025. The largest total came from ViiV Healthcare Company.
How long has Madeleine Ma been practicing?
Madeleine Ma graduated from medical school in 2020, 6 years ago.
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