Dr. Mary E. Alexander, MD

  • San Diego, CA
  • Internist
NPI1538177845PAC ID9931232386
Medicare services, 2024
395
Medicare patients, 2024
226
Part D claims, 2024
7,621
Publications
2
MIPS score, 2024
89
Practice address
5651 Copley Dr, San Diego, CA 92111
Practice phone
Call (858) 262-6666
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Sharp Rees-Stealy Medical Group, Inc

San Diego, California

See all 3 affiliations

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Dr. Mary E. Alexander is an internist in San Diego, California

Dr. Alexander practices at Sharp Rees-Stealy Medical Group, Inc in San Diego, California.

Dr. Alexander's NPI, 1538177845, was assigned on August 3, 2006. Dr. Alexander graduated from Creighton University School of Medicine - Omaha in 1988. Dr. Alexander holds California license G66922.

NPI and contact details
Medicare PAC ID
9931232386
NPI enumeration date
August 3, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(858) 262-6666
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
64
Medical school graduation
1988

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

Dr. Mary E. Alexander practices at Sharp Rees-Stealy Medical Group, Inc in San Diego, California

Dr. Alexander's primary practice is Sharp Rees-Stealy Medical Group, Inc, at 5651 Copley Dr, San Diego, CA 92111 in San Diego County. The practice phone is (858) 262-6666.

  • Sharp Rees-Stealy Medical Group, Inc
    5651 Copley Dr, San Diego, CA 92111 · San Diego CountyPhone(858) 262-6666

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Mary E. Alexander is affiliated with 2 sites of care and 1 medical group

Dr. Alexander's primary practice is Sharp Rees-Stealy Medical Group, Inc in San Diego, California. The medical group on file is Sharp Rees-Stealy Medical Group. Dmand AI also links Dr. Alexander to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Alexander

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Mary E. Alexander's practice

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

EHR by site
SiteEHR vendor and product
Sharp Rees-Stealy Medical Group, IncAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mary E. Alexander is one of 16,751 internists in California

Internal medicine is Dr. Alexander's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Alexander is board certified in internal medicine by the American Board of Internal Medicine. Dr. Alexander is licensed in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense G66922 · 1989 to 2026 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acute skin infection, alzheimer's disease, ankle or foot injury, arthritis, asthma, atrial fibrillation and flutter, chronic diabetes and chronic hypertension among the conditions Dr. Alexander treats.

Internists near Dr. Alexander

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. Mary E. Alexander billed Medicare for 395 services in 2024

CMS data shows 395 Medicare services from Dr. Alexander across 2 procedure codes in 2024, all of them office visits, for 226 Medicare patients. Medicare paid $31,463 for them. Every service was in an office.

Medicare services, 2024395
Medicare patients226
Paid by Medicare$31,463
Procedure codes2

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

  • 2023
  • 2024
Office and hospital visits
2023: 3652024: 3958%
Tests and treatments
2023: 162024: 0100%
Other services
2023: 312024: 0100%

Dr. Alexander compared with the California median for internists, 2024

  • Dr. Alexander
  • California median
Medicare services
395vs 3619% above
Medicare patients
226vs 15150% above
Part D claims
6,853vs 42116.3 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Alexander'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. Alexander

Need commercial claims for Dr. Alexander?

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

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

Dr. Mary E. Alexander treated 226 Medicare patients in 2024, average age 75

CMS counts 226 Medicare patients who saw Dr. Alexander in 2024. The largest group is 65 to 74, with 117 patients. 67% of them have high blood pressure, and 42% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Alexander's median patient age at 57, with 71% women.

Medicare patients, 2024226
Average age75
Average risk score1.16
Also on Medicaid13%

Dr. Alexander's Medicare patients by age, 2024

Dr. Alexander's Medicare patients by sex, 2024

  • Women18080%
  • Men4620%

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

  1. High blood pressure67%
  2. High cholesterol42%
  3. Arthritis39%
  4. Diabetes24%
  5. Mood disorders22%
  6. Anxiety19%
  7. Depression19%
  8. Atrial fibrillation18%

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

Dr. Alexander's patients across all payers

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

Patient panel by age, all payers

Median age 57

Patient panel by sex, all payers

  • Women71%
  • Men27%

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

Dr. Mary E. Alexander wrote 7,621 Medicare Part D claims in 2024

In 2024, Dr. Alexander wrote 7,621 Medicare Part D claims for 727 patients. 87% of them were for generic drugs. CMS names the drug for 6,853 of them, across 120 drugs with 11 or more claims each, at $516,518 in total drug cost. In 2023, CMS named 6,649 claims across 122 drugs.

Part D claims, 20247,621
Drugs named by CMS120
Total drug cost$516,518
Part D patients727

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

  • Generic6,620 claims87%
  • Brand-name954 claims13%
  • Other47 claims1%

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

  • Opioids5%404 of 7,621 claims
  • Antibiotics2%158 of 7,621 claims
  • Antipsychotics, patients 65 and over0%25 of 7,621 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: 6,6492024: 6,8533%

Drugs named by CMS: 120 in 2024, 122 in 2023.

See all prescribing by Dr. Alexander

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. Mary E. Alexander scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Alexander for performance year 2024, reported as part of a group. Dr. Alexander accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Alexander as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Alexander's MIPS scores, performance year 2024

  • 89of 100Final score
  • 81of 100Quality
  • 99of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 82of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Mary E. Alexander has 2 publications on record

Dmand AI links 2 papers to Dr. Alexander in 2011. 2011 was the busiest year, with 2. The most frequent topics are Cleft Lip, Cleft Palate and Cyclonic Storms. Dr. Alexander has published most often in Cleft Palate Craniofac J. Dr. Alexander's most frequent co-authors are Ernest Sai-Yun Chiu, MD, Haig A. Goenjian, MD and Hugo St Hilaire, MD.

Papers2

Topics Dr. Alexander writes about most

  • Cleft Lip
  • Cleft Palate
  • Cyclonic Storms

Dr. Alexander's most frequent co-authors

Recent publications by Dr. Alexander

See all 2 publications and co-authors

See who Dr. Alexander researches with

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

How network discovery works

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

Dr. Mary E. Alexander received $45 in industry payments from 2019 to 2021

CMS Open Payments shows 2 general payments to Dr. Alexander from 2 drug and device companies from 2019 to 2021. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $30.

General payments to Dr. Alexander by program year, 2019 to 2021

Companies that paid Dr. Alexander the most, 2019 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Alexander

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

Dr. Mary E. Alexander graduated from Creighton University School of Medicine - Omaha

Dr. Alexander graduated from Creighton University School of Medicine - Omaha in 1988.

  1. Medical schoolCreighton University School of Medicine - Omaha
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mary E. Alexander accepts plans from 6 insurance carriers

Dr. Alexander is in network with 6 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Alexander accepts, by number of carriers

  1. Medicare6
  2. PPO5
  3. HMO3
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Mary E. Alexander'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Clinician Public Reporting: Overall MIPS Performance (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. Mary E. Alexander

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. Mary E. Alexander's NPI number?

Dr. Mary E. Alexander's NPI number is 1538177845. It was assigned on August 3, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mary E. Alexander?

Dr. Mary E. Alexander is an internist in San Diego, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Mary E. Alexander practice?

Dr. Alexander practices at 5651 Copley Dr, San Diego, CA 92111. Dr. Alexander's primary practice is Sharp Rees-Stealy Medical Group, Inc in San Diego, California. Dmand AI also links Dr. Alexander to 1 group practice or clinic.

What is Dr. Mary E. Alexander's office phone number?

The practice phone on file for Dr. Alexander is (858) 262-6666.

What is Dr. Mary E. Alexander's medical license number?

Dr. Alexander holds California license G66922.

What medical group is Dr. Mary E. Alexander part of?

Dr. Alexander is linked to Sharp Rees-Stealy Medical Group.

Does Dr. Mary E. Alexander accept Medicare?

Yes. CMS data shows Dr. Alexander billed Medicare for 395 services in 2024, and Dr. Alexander accepts Medicare assignment.

Does Dr. Mary E. Alexander offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Alexander as offering telehealth services.

What is Dr. Mary E. Alexander's MIPS score?

Dr. Alexander's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

How many Medicare patients does Dr. Mary E. Alexander see?

CMS counts 226 Medicare patients who saw Dr. Alexander in 2024, with an average age of 75.

Show 9 more questionsShow fewer questions

Is Dr. Mary E. Alexander board certified?

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

What services does Dr. Mary E. Alexander bill to Medicare?

In 2024, Dr. Alexander's most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).

Where did Dr. Mary E. Alexander go to medical school?

Dr. Alexander graduated from Creighton University School of Medicine - Omaha in 1988.

What drugs does Dr. Mary E. Alexander prescribe most?

In 2024 Medicare Part D data, Dr. Alexander's most prescribed drugs by claims were Losartan Potassium, Atorvastatin Calcium and Levothyroxine Sodium.

Has Dr. Mary E. Alexander received payments from drug or device companies?

CMS Open Payments shows $45 in general payments to Dr. Alexander from 2 companies from 2019 to 2021. The largest total came from Novo Nordisk Inc.

How long has Dr. Mary E. Alexander been practicing?

Dr. Alexander graduated from medical school in 1988, 38 years ago.

Does Dr. Mary E. Alexander do research?

Dmand AI links 2 publications to Dr. Alexander.

Who does Dr. Mary E. Alexander publish with?

Dr. Alexander's most frequent co-authors are Ernest Sai-Yun Chiu, MD (1 shared paper), Haig A. Goenjian, MD (1 shared paper) and Hugo St Hilaire, MD (1 shared paper).

What insurance does Dr. Mary E. Alexander accept?

Dr. Alexander is in network with 6 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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