Anna Gibb Hallemeier, MD
Internal Medicine Physician · Simsbury, CT
Anna Gibb Hallemeier, MD is an internal medicine physician with a practice address in Simsbury, Connecticut, and NPI 1649333600, issued on Dec 19, 2006. Check the license (Connecticut 044724, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Anna Gibb Hallemeier
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 044724 CT
044724 MA
234053 MA
Self-reported in NPPES; status is on the state search - Practice location
- 720 Hopmeadow St, Simsbury, CT 06070
- Phone
- (860) 651-3519
- Enumerated
- Dec 19, 2006
- Record last updated
- Nov 7, 2022
- Fax
- (860) 651-4133
- Medicare enrollment
- Enrolled (PECOS I20090218000068); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 720 Hopmeadow St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donna Bouchard, APRNPsychiatric/Mental Health Nurse Practitioner1841535374
- John Cappadona, M.D.Internal Medicine Physician1477667699
- Suzanne Chester, D.C.Chiropractor1114961521
- Linda Kowalczuk, APRNAdult Health Nurse Practitioner1124171103
- Kerra Maurer, APRN, AGPCNP-BCGerontology Nurse Practitioner1649656414
- Patricia Shea, PA-CMedical Physician Assistant1679721021
Verify Anna Gibb Hallemeier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 044724Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% more Medicare Part D claims than the average internal medicine physician in 2024
5,838 Medicare Part D claims for 500 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 57 claims were for opioids.
Most prescribed
- Atorvastatin Calcium420 claims
- Amlodipine Besylate280 claims
- Levothyroxine Sodium254 claims
- Rosuvastatin Calcium245 claims
- Losartan Potassium223 claims
- Omeprazole157 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Mclean FundSimsbury, CT
- University OF Connecticut Health CenterSimsbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna Gibb Hallemeier among 2,623 internal medicine physician records in Connecticut
Anna Gibb Hallemeier, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2002 · median 2004 among the 1,646 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 internal medicine physician records list a practice address in Simsbury
They are 6 of the 180 NPPES records with a practice address in Simsbury, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Simsbury → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Akif AltinbasSimsbury, CT 060701346826328
- Susan Arvan, DOSimsbury, CT 060701972823649
- John Cappadona, M.D.Simsbury, CT 060701477667699
- Peter Smith, MDSimsbury, CT 060701235267816
- Christopher Steele, MDSimsbury, CT 060701922492255
- Md Bhuiyan, DOSharon, CT 060691871053413
- Eben Kimball, M.D.Sharon, CT 060691922533553
- David Kurish, MDSharon, CT 060691447265228
Common questions
What is Anna Gibb Hallemeier, MD's NPI number?
Anna Gibb Hallemeier, MD's National Provider Identifier (NPI) is 1649333600, issued on Dec 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Anna Gibb Hallemeier, MD located?
The NPPES record lists a practice address at 720 Hopmeadow St, Simsbury, CT, 06070. Phone: (860) 651-3519. Providers update this record themselves, so call before visiting.
How can I verify Anna Gibb Hallemeier, MD's license?
NPPES lists Connecticut license number 044724, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Anna Gibb Hallemeier, MD prescribe under Medicare Part D?
In 2024, Anna Gibb Hallemeier, MD had 5,838 Medicare Part D claims for 500 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Anna Gibb Hallemeier, MD's MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.