Dr. Shiva Kumar Annamalai, MD

  • Portland, ME
  • Cardiologist
NPI1972915544PAC ID3678862968
Medicare services, 2024
1,586
Medicare patients, 2024
810
Part D claims, 2024
1,547
Publications
16
MIPS score, 2024
98
Practice address
22 Bramhall St, Portland, ME 04102
Practice phone
Call (207) 662-0111
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

MaineHealth Maine Medical Center

Hospital · Portland, Maine

See all 13 affiliations

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Dr. Shiva Kumar Annamalai is a cardiologist in Portland, Maine

Dr. Annamalai practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.

Dr. Annamalai's NPI, 1972915544, was assigned on May 29, 2014. Dr. Annamalai graduated from University of Massachusetts Medical School in 2014. Dr. Annamalai holds Maine license MD24429.

NPI and contact details
Medicare PAC ID
3678862968
NPI enumeration date
May 29, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(207) 662-0111
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

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

Dr. Shiva Kumar Annamalai practices at MaineHealth Maine Medical Center in Portland, Maine

Dr. Annamalai's primary practice is MaineHealth Maine Medical Center, at 22 Bramhall St, Portland, ME 04102 in Cumberland County. The practice phone is (207) 662-0111.

Source: Dmand AI Affiliation Data

Dr. Shiva Kumar Annamalai is affiliated with 9 sites of care and 4 medical groups

Dr. Annamalai's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dr. Annamalai is also affiliated with MaineGeneral Medical Center. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. Dmand AI also links Dr. Annamalai to 3 more hospitals, 4 group practices and clinics and 3 medical groups, each named with a free account.

See all 13 affiliations for Dr. Annamalai

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

Dmand AI tracks the EHR system at Dr. Shiva Kumar Annamalai's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Annamalai practices, 9 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
MaineHealth Maine Medical CenterAvailable with a free account
+8 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Shiva Kumar Annamalai is one of 153 cardiologists in Maine

Cardiovascular disease is Dr. Annamalai's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dmand AI has Dr. Annamalai's licenses on file in 3 states: Maine, Massachusetts and New Hampshire.

Specialties and state licenses

  • Cardiovascular disease, MainePrimaryLicense MD24429 · taxonomy 207RC0000X
  • Internal medicine, MassachusettsLicense 259538 · taxonomy 207R00000X
  • New Hampshire licenseLicense 21201

Cardiologists near Dr. Annamalai

Counts of cardiologists 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. Shiva Kumar Annamalai billed Medicare for 1,586 services in 2024

CMS data shows 1,586 Medicare services from Dr. Annamalai across 27 procedure codes in 2024, for 810 Medicare patients. Medicare paid $62,361 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20241,586
Medicare patients810
Paid by Medicare$62,361
Procedure codes27

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

  • 2023
  • 2024
Tests and treatments
2023: 9852024: 1,09912%
Office and hospital visits
2023: 2532024: 29617%
Imaging
2023: 1672024: 19114%

Dr. Annamalai compared with the Maine median for cardiologists, 2024

  • Dr. Annamalai
  • Maine median
Medicare services
1,586vs 1,13140% above
Medicare patients
810vs 7646% above
Part D claims
1,439vs 6002.4 times

Medians across 154 cardiologists in Maine with Dmand AI profiles that report each measure.

Dr. Annamalai'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. Annamalai

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

Dr. Shiva Kumar Annamalai treated 810 Medicare patients in 2024, average age 76

CMS counts 810 Medicare patients who saw Dr. Annamalai in 2024. The largest group is 75 to 84, with 325 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.76, 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. Annamalai's median patient age at 74, with 46% women.

Medicare patients, 2024810
Average age76
Average risk score1.76
Also on Medicaid24%

Dr. Annamalai's Medicare patients by age, 2024

Dr. Annamalai's Medicare patients by sex, 2024

  • Women35544%
  • Men45556%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Ischemic heart disease57%
  4. Arthritis46%
  5. Atrial fibrillation46%
  6. Heart failure46%
  7. Chronic kidney disease42%
  8. Diabetes36%

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

Dr. Annamalai's patients across all payers

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

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women46%
  • Men52%

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

Dr. Shiva Kumar Annamalai wrote 1,547 Medicare Part D claims in 2024

In 2024, Dr. Annamalai wrote 1,547 Medicare Part D claims for 254 patients. 93% of them were for generic drugs. CMS names the drug for 1,439 of them, across 21 drugs with 11 or more claims each, at $95,371 in total drug cost. In 2023, CMS named 1,036 claims across 21 drugs.

Part D claims, 20241,547
Drugs named by CMS21
Total drug cost$95,371
Part D patients254

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

  • Generic1,431 claims93%
  • Brand-name116 claims7%

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

  • Antibiotics2%27 of 1,547 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: 1,0362024: 1,43939%

Drugs named by CMS: 21 in 2024, 21 in 2023.

See all prescribing by Dr. Annamalai

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. Shiva Kumar Annamalai scored 98 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Annamalai for performance year 2024, reported through an alternative payment model (APM). Dr. Annamalai accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Annamalai's MIPS scores, performance year 2024

  • 98of 100Final score
  • 83.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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. Shiva Kumar Annamalai has 16 publications on record

Dmand AI links 16 papers to Dr. Annamalai, published from 2017 to 2024. 2018 was the busiest year, with 6. The most frequent topics are Heart-Assist Devices, Ventricular Function, Left and Heart Failure. Dr. Annamalai has published most often in J Cardiovasc Transl Res. Dr. Annamalai's most frequent co-authors are Michele Lynne Esposito, MD, Richard Karas, MD and Lena E. Jorde, MD, MPH.

Papers16
Years published2017 to 2024

Dr. Annamalai's papers by year, 2017 to 2024

Topics Dr. Annamalai writes about most

  • Heart-Assist Devices
  • Ventricular Function, Left
  • Heart Failure
  • Recovery of Function
  • Shock, Cardiogenic
  • Extracorporeal Membrane Oxygenation
  • Myocardial Infarction
  • Stroke Volume

Dr. Annamalai's most frequent co-authors

Recent publications by Dr. Annamalai

See all 16 publications and co-authors

See who Dr. Annamalai researches with

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

How network discovery works

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

Dr. Shiva Kumar Annamalai received $8,143 in industry payments from 2016 to 2025

CMS Open Payments shows 49 general payments to Dr. Annamalai from 11 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 52% of the total. Abiomed paid the most, $4,801.

General payments to Dr. Annamalai by program year, 2016 to 2025

General payments to Dr. Annamalai by kind, 2016 to 2025

$8.1Kin total
  • Travel and lodging$4,24752%
  • Honoraria$2,00025%
  • Food and beverage$1,70621%
  • Education$1902%

Companies that paid Dr. Annamalai the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Annamalai

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

Dr. Shiva Kumar Annamalai graduated from University of Massachusetts Medical School

Dr. Annamalai graduated from University of Massachusetts Medical School in 2014.

  1. Medical schoolUniversity of Massachusetts Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Shiva Kumar Annamalai'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)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
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. Shiva Kumar Annamalai

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. Shiva Kumar Annamalai's NPI number?

Dr. Shiva Kumar Annamalai's NPI number is 1972915544. It was assigned on May 29, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. Shiva Kumar Annamalai?

Dr. Shiva Kumar Annamalai is a cardiologist in Portland, Maine. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).

Where does Dr. Shiva Kumar Annamalai practice?

Dr. Annamalai practices at 22 Bramhall St, Portland, ME 04102. Dr. Annamalai's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dmand AI also links Dr. Annamalai to 3 hospitals, 4 group practices and clinics and 3 medical groups.

What is Dr. Shiva Kumar Annamalai's office phone number?

The practice phone on file for Dr. Annamalai is (207) 662-0111.

What is Dr. Shiva Kumar Annamalai's medical license number?

Dr. Annamalai holds Maine license MD24429, one of the licenses on file in 3 states.

Which states has Dr. Shiva Kumar Annamalai been licensed in?

Dmand AI has state licenses on file for Dr. Annamalai in Maine, Massachusetts and New Hampshire.

Which hospitals is Dr. Shiva Kumar Annamalai affiliated with?

Dr. Annamalai practices at MaineHealth Maine Medical Center in Portland, Maine. Dr. Annamalai is also affiliated with MaineGeneral Medical Center. Dmand AI links Dr. Annamalai to 3 more hospitals.

What medical group is Dr. Shiva Kumar Annamalai part of?

Dr. Annamalai is linked to MaineHealth Primary Care - Family Medicine - Portland. Dmand AI links Dr. Annamalai to 3 more medical groups.

Does Dr. Shiva Kumar Annamalai accept Medicare?

Yes. CMS data shows Dr. Annamalai billed Medicare for 1,586 services in 2024, and Dr. Annamalai accepts Medicare assignment.

What is Dr. Shiva Kumar Annamalai's MIPS score?

Dr. Annamalai's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Shiva Kumar Annamalai see?

CMS counts 810 Medicare patients who saw Dr. Annamalai in 2024, with an average age of 76.

What services does Dr. Shiva Kumar Annamalai bill to Medicare?

In 2024, Dr. Annamalai's most billed Medicare services were heart test or procedure (93010), heart test or procedure (93306) and diagnostic imaging (76376).

Where did Dr. Shiva Kumar Annamalai go to medical school?

Dr. Annamalai graduated from University of Massachusetts Medical School in 2014.

What drugs does Dr. Shiva Kumar Annamalai prescribe most?

In 2024 Medicare Part D data, Dr. Annamalai's most prescribed drugs by claims were Atorvastatin Calcium, Metoprolol Succinate and Amlodipine Besylate.

Has Dr. Shiva Kumar Annamalai received payments from drug or device companies?

CMS Open Payments shows $8,143 in general payments to Dr. Annamalai from 11 companies from 2016 to 2025. The largest total came from Abiomed.

How long has Dr. Shiva Kumar Annamalai been practicing?

Dr. Annamalai graduated from medical school in 2014, 12 years ago.

Does Dr. Shiva Kumar Annamalai do research?

Dmand AI links 16 publications to Dr. Annamalai, published from 2017 to 2024.

Who does Dr. Shiva Kumar Annamalai publish with?

Dr. Annamalai's most frequent co-authors are Michele Lynne Esposito, MD (9 shared papers), Richard Karas, MD (6 shared papers) and Lena E. Jorde, MD, MPH (3 shared papers).

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