Dr. Mahsa Esfahani, MD

  • San Jose, CA
  • Hospitalist
NPI1447205547PAC ID6709847155
Medicare services, 2024
780
Medicare patients, 2024
281
Part D claims, 2024
236
Publications
9
Hospital affiliations
2
Practice address
2425 Samaritan Drive, San Jose, CA 95124
Practice phone
Call (408) 559-2011
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Good Samaritan Hospital

Hospital · San Jose, California

See all 5 affiliations

Find Dr. Esfahani'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.

View contacts for free

Dr. Mahsa Esfahani is a hospitalist in San Jose, California

Dr. Esfahani practices at Good Samaritan Hospital in San Jose, California, part of HCA Healthcare.

Dr. Esfahani's NPI, 1447205547, was assigned on May 24, 2006. Dr. Esfahani graduated from St. George's University School of Medicine in 2001. Dr. Esfahani holds California license A86986.

NPI and contact details
Medicare PAC ID
6709847155
NPI enumeration date
May 24, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(408) 559-2011
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
51
Medical school graduation
2001

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mahsa Esfahani practices at Good Samaritan Hospital in San Jose, California

Dr. Esfahani's primary practice is Good Samaritan Hospital, at 2425 Samaritan Drive, San Jose, CA 95124 in Santa Clara County. The practice phone is (408) 559-2011.

Source: Dmand AI Affiliation Data

Dr. Mahsa Esfahani is affiliated with 3 sites of care and 2 medical groups

Dr. Esfahani's primary practice is Good Samaritan Hospital in San Jose, California, part of HCA Healthcare. Dr. Esfahani is also affiliated with El Camino Health - Mountain View Hospital. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Esfahani to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Esfahani

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mahsa Esfahani's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Esfahani practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Good Samaritan HospitalAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Esfahani practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across HCA Healthcare and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Mahsa Esfahani is one of 3,186 hospitalists in California

Hospitalist is Dr. Esfahani's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Esfahani is board certified in internal medicine by the American Board of Internal Medicine. Dr. Esfahani is licensed in California.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A86986 · 2004 to 2026 · taxonomy 208M00000X

Clinical focus

Dmand AI lists acute diabetes, acute respiratory failure, anemia, bone infection, cellulitis, cirrhosis, congestive heart failure and dementia among the conditions Dr. Esfahani treats.

Hospitalists near Dr. Esfahani

Counts of hospitalists 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. Mahsa Esfahani billed Medicare for 780 services in 2024

CMS data shows 780 Medicare services from Dr. Esfahani across 5 procedure codes in 2024, for 281 Medicare patients. Medicare paid $75,673 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024780
Medicare patients281
Paid by Medicare$75,673
Procedure codes5

Dr. Esfahani's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,0332024: 78024%

Dr. Esfahani compared with the California median for hospitalists, 2024

  • Dr. Esfahani
  • California median
Medicare services
780vs 43081% above
Medicare patients
281vs 20140% above
Part D claims
73vs 696% above

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Dr. Esfahani'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.

See all procedures by Dr. Esfahani

Need commercial claims for Dr. Esfahani?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Esfahani and other hospitalists in California.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mahsa Esfahani treated 281 Medicare patients in 2024, average age 82

CMS counts 281 Medicare patients who saw Dr. Esfahani in 2024. The largest group is 85 and over, with 114 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.91, 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. Esfahani's median patient age at 79, with 55% women.

Medicare patients, 2024281
Average age82
Average risk score1.91
Also on Medicaid12%

Dr. Esfahani's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Esfahani's Medicare patients by sex, 2024

  • Women15957%
  • Men12243%

Chronic conditions among Dr. Esfahani's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis53%
  4. Ischemic heart disease49%
  5. Chronic kidney disease44%
  6. Atrial fibrillation43%
  7. Heart failure43%
  8. Diabetes36%

Share of Medicare patients with each condition. A patient can have several.

Dr. Esfahani's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 79

Patient panel by sex, all payers

  • Women55%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mahsa Esfahani wrote 236 Medicare Part D claims in 2024

In 2024, Dr. Esfahani wrote 236 Medicare Part D claims for 115 patients. 94% of them were for generic drugs. CMS names the drug for 73 of them, across 5 drugs with 11 or more claims each, at $323 in total drug cost. In 2023, CMS named 58 claims across 4 drugs.

Part D claims, 2024236
Drugs named by CMS5
Total drug cost$323
Part D patients115

Dr. Esfahani's Part D claims by kind of drug, 2024

  • Generic223 claims94%
  • Brand-name13 claims6%

Dr. Esfahani'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. Esfahani's Part D claims, 2024

  • Antibiotics12%29 of 236 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: 582024: 7326%

Drugs named by CMS: 5 in 2024, 4 in 2023.

See all prescribing by Dr. Esfahani

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 Dr. Mahsa Esfahani takes part in Medicare

Dr. Esfahani 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)

For MedTech and pharma teams

Find hospitalists like Dr. Esfahani by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Mahsa Esfahani has 9 publications on record

Dmand AI links 9 papers to Dr. Esfahani, published from 2013 to 2024. 2022 was the busiest year, with 2.

Papers9
Years published2013 to 2024

Dr. Esfahani's papers by year, 2013 to 2024

Recent publications by Dr. Esfahani

See all 9 publications and co-authors

See who Dr. Esfahani researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Esfahani works with, so you can find a warm path to the right hospitalists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mahsa Esfahani received $32 in industry payments in 2018

CMS Open Payments shows 1 general payment to Dr. Esfahani from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $32.

Companies that paid Dr. Esfahani the most, 2018 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Esfahani

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mahsa Esfahani graduated from St. George's University School of Medicine

Dr. Esfahani graduated from St. George's University School of Medicine in 2001.

  1. Medical schoolSt. George's University School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mahsa Esfahani accepts plans from 11 insurance carriers

Dr. Esfahani is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • HCSC
  • Alliant Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +3 more carriersWith a free account

Plan types Dr. Esfahani accepts, by number of carriers

  1. PPO7
  2. HMO6
  3. EPO4
  4. Medicare4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Mahsa Esfahani's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mahsa Esfahani

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. Mahsa Esfahani's NPI number?

Dr. Mahsa Esfahani's NPI number is 1447205547. It was assigned on May 24, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mahsa Esfahani?

Dr. Mahsa Esfahani is a hospitalist in San Jose, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Mahsa Esfahani practice?

Dr. Esfahani practices at 2425 Samaritan Drive, San Jose, CA 95124. Dr. Esfahani's primary practice is Good Samaritan Hospital in San Jose, California, part of HCA Healthcare. Dmand AI also links Dr. Esfahani to 1 group practice or clinic and 1 medical group.

What is Dr. Mahsa Esfahani's office phone number?

The practice phone on file for Dr. Esfahani is (408) 559-2011.

What is Dr. Mahsa Esfahani's medical license number?

Dr. Esfahani holds California license A86986.

Which hospitals is Dr. Mahsa Esfahani affiliated with?

Dr. Esfahani practices at Good Samaritan Hospital in San Jose, California. Dr. Esfahani is also affiliated with El Camino Health - Mountain View Hospital.

What medical group is Dr. Mahsa Esfahani part of?

Dr. Esfahani is linked to Palo Alto Foundation Medical Group. Dmand AI links Dr. Esfahani to 1 more medical group.

Does Dr. Mahsa Esfahani accept Medicare?

Yes. CMS data shows Dr. Esfahani billed Medicare for 780 services in 2024, and Dr. Esfahani accepts Medicare assignment.

How many Medicare patients does Dr. Mahsa Esfahani see?

CMS counts 281 Medicare patients who saw Dr. Esfahani in 2024, with an average age of 82.

Is Dr. Mahsa Esfahani board certified?

Yes. Dr. Esfahani is board certified in internal medicine by the American Board of Internal Medicine.

Show 7 more questionsShow fewer questions

What services does Dr. Mahsa Esfahani bill to Medicare?

In 2024, Dr. Esfahani's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).

Where did Dr. Mahsa Esfahani go to medical school?

Dr. Esfahani graduated from St. George's University School of Medicine in 2001.

What drugs does Dr. Mahsa Esfahani prescribe most?

In 2024 Medicare Part D data, Dr. Esfahani's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Pantoprazole Sodium.

Has Dr. Mahsa Esfahani received payments from drug or device companies?

CMS Open Payments shows $32 in general payments to Dr. Esfahani from 1 company from 2018 to 2018. The largest total came from Edwards Lifesciences Corporation.

How long has Dr. Mahsa Esfahani been practicing?

Dr. Esfahani graduated from medical school in 2001, 25 years ago.

Does Dr. Mahsa Esfahani do research?

Dmand AI links 9 publications to Dr. Esfahani, published from 2013 to 2024.

What insurance does Dr. Mahsa Esfahani accept?

Dr. Esfahani is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.

Selling to hospitalist practices?

See hospitalists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)