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Dr. Margarita M. Alonso, MD
NPI1780618082PAC ID1951390178
- Medicare services, 2024
- 310
- Medicare patients, 2024
- 33
- Part D claims, 2024
- 521
- Publications
- 1
- Industry payments
- $4,527
- Practice address
- 4401 Manchester Ave, Encinitas, CA 92024
- Practice phone
- Call (619) 294-4119
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Margarita Alonso MD
Encinitas, California
Find Dr. Alonso's professional email, personal email and mobile number
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Dr. Margarita M. Alonso is a psychiatrist in Encinitas, California
Dr. Alonso practices at Margarita Alonso MD in Encinitas, California.
Dr. Alonso's NPI, 1780618082, was assigned on July 10, 2006. Dr. Alonso graduated from University of Puerto Rico, Medical Sciences Campus in 1989. Dr. Alonso holds California license G-75461.
NPI and contact details
- NPI
- 1780618082NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951390178
- NPI enumeration date
- July 10, 2006
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (619) 294-4119
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Margarita M. Alonso practices at Margarita Alonso MD in Encinitas, California
Dr. Alonso's primary practice is Margarita Alonso MD, at 4401 Manchester Ave, Encinitas, CA 92024 in San Diego County. The practice phone is (619) 294-4119.
- Margarita Alonso MD4401 Manchester Ave, Encinitas, CA 92024 · San Diego CountyPhone(619) 294-4119
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Margarita M. Alonso is affiliated with 2 sites of care
Dr. Alonso's primary practice is Margarita Alonso MD in Encinitas, California. Dmand AI also links Dr. Alonso to 1 physician office, named with a free account.
Margarita Alonso MDPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Margarita M. Alonso's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alonso practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Margarita Alonso MD | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Margarita M. Alonso is one of 6,803 psychiatrists in California
Psychiatry is Dr. Alonso's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Alonso is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Alonso's licenses on file in 2 states: California and Oklahoma.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Oklahoma license
Clinical focus
Dmand AI lists anxiety, bipolar disorder and depression among the conditions Dr. Alonso treats.
Psychiatrists near Dr. Alonso
Counts of psychiatrists 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. Margarita M. Alonso billed Medicare for 310 services in 2024
CMS data shows 310 Medicare services from Dr. Alonso across 3 procedure codes in 2024, for 33 Medicare patients. Medicare paid $20,985 for them. Every service was in an office.
Medicare services, 2024310
Medicare patients33
Paid by Medicare$20,985
Procedure codes3
Dr. Alonso's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1412024: 15913%
- Tests and treatments
- 2023: 1462024: 1513%
Dr. Alonso compared with the California median for psychiatrists, 2024
- Dr. Alonso
- California median
- Medicare services
- 310vs 1192.6 times
- Medicare patients
- 33vs 4120% below
- Part D claims
- 433vs 1443.0 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Alonso'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Alonso and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Margarita M. Alonso treated 33 Medicare patients in 2024, average age 73
CMS counts 33 Medicare patients who saw Dr. Alonso in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have mood disorders, and 64% have depression. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Alonso's median patient age at 64, with 79% women.
Medicare patients, 202433
Average age73
Average risk score0.88
Dr. Alonso's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Alonso's Medicare patients, 2024
- Mood disorders75%
- Depression64%
- Anxiety58%
- High cholesterol58%
- Arthritis55%
- High blood pressure48%
- Osteoporosis36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Alonso'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
- Women79%
- Men20%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Margarita M. Alonso wrote 521 Medicare Part D claims in 2024
In 2024, Dr. Alonso wrote 521 Medicare Part D claims for 52 patients. 92% of them were for generic drugs. CMS names the drug for 433 of them, across 15 drugs with 11 or more claims each, at $38,367 in total drug cost. In 2023, CMS named 446 claims across 19 drugs.
Part D claims, 2024521
Drugs named by CMS15
Total drug cost$38,367
Part D patients52
Dr. Alonso's Part D claims by kind of drug, 2024
- Generic480 claims92%
- Brand-name41 claims8%
Dr. Alonso'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. Alonso's Part D claims, 2024
- Antipsychotics, patients 65 and over4%22 of 521 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: 4462024: 4333%
Drugs named by CMS: 15 in 2024, 19 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. Margarita M. Alonso offers telehealth to Medicare patients
CMS lists Dr. Alonso as offering telehealth.
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Margarita M. Alonso has 1 publication on record
Dmand AI links 1 paper to Dr. Alonso in 2009. Dr. Alonso's most frequent co-author is Michael E. Pichichero, MD.
Papers1
Dr. Alonso's most frequent co-authors
Recent publications by Dr. Alonso
See who Dr. Alonso researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Alonso works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Margarita M. Alonso received $4,527 in industry payments from 2016 to 2025
CMS Open Payments shows 289 general payments to Dr. Alonso from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Lundbeck LLC paid the most, $858.
General payments to Dr. Alonso by program year, 2016 to 2025
General payments to Dr. Alonso by kind, 2016 to 2025
$4.5Kin total
- Food and beverage$4,525100%
- Education$20%
Companies that paid Dr. Alonso the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Margarita M. Alonso graduated from University of Puerto Rico, Medical Sciences Campus
Dr. Alonso graduated from University of Puerto Rico, Medical Sciences Campus in 1989.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Margarita M. Alonso accepts plans from 6 insurance carriers
Dr. Alonso is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and Elevance. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- CMS Medicare
- United Healthcare
Plan types Dr. Alonso accepts, by number of carriers
- Medicare6
- PPO4
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Margarita M. Alonso'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Margarita M. Alonso
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. Margarita M. Alonso's NPI number?
Dr. Margarita M. Alonso's NPI number is 1780618082. It was assigned on July 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Margarita M. Alonso?
Dr. Margarita M. Alonso is a psychiatrist in Encinitas, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Margarita M. Alonso practice?
Dr. Alonso practices at 4401 Manchester Ave, Encinitas, CA 92024. Dr. Alonso's primary practice is Margarita Alonso MD in Encinitas, California. Dmand AI also links Dr. Alonso to 1 physician office.
What is Dr. Margarita M. Alonso's office phone number?
The practice phone on file for Dr. Alonso is (619) 294-4119.
What is Dr. Margarita M. Alonso's medical license number?
Dr. Alonso holds California license G-75461, one of the licenses on file in 2 states.
Which states has Dr. Margarita M. Alonso been licensed in?
Dmand AI has state licenses on file for Dr. Alonso in California (1992 to 2026) and Oklahoma (1994 to 1996).
Does Dr. Margarita M. Alonso accept Medicare?
Yes. CMS data shows Dr. Alonso billed Medicare for 310 services in 2024.
Does Dr. Margarita M. Alonso offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Alonso as offering telehealth services.
How many Medicare patients does Dr. Margarita M. Alonso see?
CMS counts 33 Medicare patients who saw Dr. Alonso in 2024, with an average age of 73.
Is Dr. Margarita M. Alonso board certified?
Yes. Dr. Alonso is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Show 8 more questionsShow fewer questions
What services does Dr. Margarita M. Alonso bill to Medicare?
In 2024, Dr. Alonso's most billed Medicare services were psychiatric service (90836), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Margarita M. Alonso go to medical school?
Dr. Alonso graduated from University of Puerto Rico, Medical Sciences Campus in 1989.
What drugs does Dr. Margarita M. Alonso prescribe most?
In 2024 Medicare Part D data, Dr. Alonso's most prescribed drugs by claims were Duloxetine HCl, Bupropion XL and Escitalopram Oxalate.
Has Dr. Margarita M. Alonso received payments from drug or device companies?
CMS Open Payments shows $4,527 in general payments to Dr. Alonso from 21 companies from 2016 to 2025. The largest total came from Lundbeck LLC.
How long has Dr. Margarita M. Alonso been practicing?
Dr. Alonso graduated from medical school in 1989, 37 years ago.
Does Dr. Margarita M. Alonso do research?
Dmand AI links 1 publication to Dr. Alonso.
Who does Dr. Margarita M. Alonso publish with?
Dr. Alonso's most frequent co-authors are Michael E. Pichichero, MD (1 shared paper).
What insurance does Dr. Margarita M. Alonso accept?
Dr. Alonso is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and Elevance. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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