Dr. Nirmala Lois Monteiro, MD

  • Boston, MA
  • Internist
NPI1558346338
Medicare services, 2023
245
Part D claims, 2024
170
MIPS score, 2024
100
Hospital affiliations
1
Industry payments
$870
Practice address
55 Fruit Street, Boston, MA 02114
Practice phone
Call (617) 726-2000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Massachusetts General Hospital

Hospital · Boston, Massachusetts

See all 5 affiliations

Find Dr. Monteiro'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. Nirmala Lois Monteiro is an internist in Boston, Massachusetts

Dr. Monteiro practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Monteiro's NPI, 1558346338, was assigned on December 14, 2005. Dr. Monteiro graduated from St. John's Medical College in 1982. Dr. Monteiro holds Connecticut license 026844.

NPI and contact details
NPI enumeration date
December 14, 2005
NPI status
Active
Practice phone
(617) 726-2000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
70
Medical school graduation
1982

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

Dr. Nirmala Lois Monteiro practices at Massachusetts General Hospital in Boston, Massachusetts

Dr. Monteiro's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.

Source: Dmand AI Affiliation Data

Dr. Nirmala Lois Monteiro is affiliated with 4 sites of care and 1 medical group

Dr. Monteiro's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Northeast Medical Group. Dmand AI also links Dr. Monteiro to 1 more community health center, 1 physician office and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Monteiro

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

Dmand AI tracks the EHR system at Dr. Nirmala Lois Monteiro's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Monteiro practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Massachusetts General HospitalAvailable with a free account
+3 more affiliated sitesAvailable 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. Monteiro practices

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

Dr. Nirmala Lois Monteiro is one of 5,528 internists in Massachusetts

Internal medicine is Dr. Monteiro's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Monteiro is licensed in Connecticut.

Specialties and state licenses

  • Internal medicine, ConnecticutPrimaryLicense 026844 · taxonomy 207R00000X

Internists near Dr. Monteiro

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. Nirmala Lois Monteiro billed Medicare for 245 services in 2023

CMS data shows 245 Medicare services from Dr. Monteiro across 5 procedure codes in 2023. Medicare paid $24,125 for them. Every service was in an office.

Medicare services, 2023245
Paid by Medicare$24,125
Procedure codes5

Dr. Monteiro's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Office and hospital visits
2022: 2152023: 13836%
Other services
2022: 992023: 8811%
Tests and treatments
2022: 162023: 1919%

Dr. Monteiro compared with the Massachusetts median for internists, 2023

  • Dr. Monteiro
  • Massachusetts median
Medicare services
245vs 43143% below
Part D claims
71vs 40282% below

Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Monteiro's most billed Medicare procedure codes, 2023

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. Monteiro

Need commercial claims for Dr. Monteiro?

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

Book a meeting

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

Dr. Nirmala Lois Monteiro's patients have a median age of 67

Across all payers, Dmand AI patient panel data puts Dr. Monteiro's median patient age at 67, with 71% women.

Dr. Monteiro's patients across all payers

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

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women71%
  • Men28%

Source: Dmand AI Patient Panel Data

Dr. Nirmala Lois Monteiro wrote 170 Medicare Part D claims in 2024

In 2024, Dr. Monteiro wrote 170 Medicare Part D claims for 79 patients. 95% of them were for generic drugs. CMS names the drug for 71 of them, across 4 drugs with 11 or more claims each, at $656 in total drug cost. In 2023, CMS named 1,307 claims across 30 drugs.

Part D claims, 2024170
Drugs named by CMS4
Total drug cost$656
Part D patients79

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

  • Generic161 claims95%
  • Brand-name and other9 claims5%

Dr. Monteiro'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,3072024: 7195%

Drugs named by CMS: 4 in 2024, 30 in 2023.

See all prescribing by Dr. Monteiro

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. Nirmala Lois Monteiro scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Monteiro for performance year 2024, reported through an alternative payment model (APM).

Dr. Monteiro's MIPS scores, performance year 2024

  • 100of 100Final score
  • 86.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

Find internists like Dr. Monteiro 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. Nirmala Lois Monteiro received $870 in industry payments from 2016 to 2017

CMS Open Payments shows 56 general payments to Dr. Monteiro from 14 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $165.

General payments to Dr. Monteiro by program year, 2016 to 2017

Companies that paid Dr. Monteiro the most, 2016 to 2017

Share is of all general payments to this clinician.

See all payments to Dr. Monteiro

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

Dr. Nirmala Lois Monteiro graduated from St. John's Medical College

Dr. Monteiro graduated from St. John's Medical College in 1982.

  1. Medical schoolSt. John's Medical College

Source: Dmand AI Professional Profile Data

Sources for Dr. Nirmala Lois Monteiro'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 Data
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 percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
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. Nirmala Lois Monteiro

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. Nirmala Lois Monteiro's NPI number?

Dr. Nirmala Lois Monteiro's NPI number is 1558346338. It was assigned on December 14, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Nirmala Lois Monteiro?

Dr. Nirmala Lois Monteiro is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Nirmala Lois Monteiro practice?

Dr. Monteiro practices at 55 Fruit Street, Boston, MA 02114. Dr. Monteiro's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Monteiro to 1 community health center, 1 physician office and 1 group practice or clinic.

What is Dr. Nirmala Lois Monteiro's office phone number?

The practice phone on file for Dr. Monteiro is (617) 726-2000.

What is Dr. Nirmala Lois Monteiro's medical license number?

Dr. Monteiro holds Connecticut license 026844.

Which hospitals is Dr. Nirmala Lois Monteiro affiliated with?

Dr. Monteiro practices at Massachusetts General Hospital in Boston, Massachusetts.

What medical group is Dr. Nirmala Lois Monteiro part of?

Dr. Monteiro is linked to Northeast Medical Group.

Does Dr. Nirmala Lois Monteiro accept Medicare?

Yes. CMS data shows Dr. Monteiro billed Medicare for 245 services in 2023.

What is Dr. Nirmala Lois Monteiro's MIPS score?

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

What services does Dr. Nirmala Lois Monteiro bill to Medicare?

In 2023, Dr. Monteiro's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and office visit, established patient (99213).

Show 4 more questionsShow fewer questions

Where did Dr. Nirmala Lois Monteiro go to medical school?

Dr. Monteiro graduated from St. John's Medical College in 1982.

What drugs does Dr. Nirmala Lois Monteiro prescribe most?

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

Has Dr. Nirmala Lois Monteiro received payments from drug or device companies?

CMS Open Payments shows $870 in general payments to Dr. Monteiro from 14 companies from 2016 to 2017. The largest total came from Amgen Inc.

How long has Dr. Nirmala Lois Monteiro been practicing?

Dr. Monteiro graduated from medical school in 1982, 44 years ago.

Selling to internal medicine practices?

See internists in Massachusetts 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)