NPPES file of Aug 9, 2026

Tania S. Sierra, MD

Gynecology Physician · Fairfield, CT

Tania S. Sierra, MD is a gynecology physician with a practice address in Fairfield, Connecticut, and NPI 1356631998, issued on Apr 16, 2011. Check the license (Connecticut 62554, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356631998
Name
Tania S. Sierra
Credential
MD
Primary taxonomy
Gynecology Physician 207VG0400X
License number
62554 CT
Self-reported in NPPES; status is on the state search
Practice location
52 Beach RD Ste 205, Fairfield, CT 06824
Phone
(475) 330-6406
Enumerated
Apr 16, 2011
Record last updated
Apr 28, 2025
Fax
(475) 330-6405
Medicare enrollment
Enrolled (PECOS I20190503000240); accepts Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 2011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Tania S. Sierra in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 62554
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

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5.4 times the Medicare Part D claims of the average gynecology physician in 2024

1,619 Medicare Part D claims for 448 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims. 46 claims were for opioids.

  1. Tania Sierra1,619
  2. Specialty average299

Most prescribed

  1. Gemtesa313 claims
  2. Myrbetriq300 claims
  3. Estradiol170 claims
  4. Nitrofurantoin Mono-Macro143 claims
  5. Ciprofloxacin Hcl79 claims
  6. Sulfamethoxazole-Trimethoprim74 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 MIPS final score for 2023 (Medicare payment program): 93.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Northeast Medical Group IncBridgeport, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tania S. Sierra among 69 gynecology physician records in Connecticut

Tania S. Sierra, MD is one of 69 gynecology physician records with a practice address in Connecticut. 42% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 87% of them.

  • NPI issued2011 · 87% of these records are older, 9% newer
  • In a Medicare fileYes · 42% of these records are
  • In the CMS Doctors and Clinicians fileYes · 30% of these records are
  • Graduated2011 · median 1992 among the 21 with a school on file
  • Record last updated2025 · 86% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecology Physician providers in Connecticut

There are 69 gynecology physician records in Connecticut.

The 8 gynecology physician records with the nearest ZIP codes

  1. Karli Goldstein, D.O.Greenwich, CT 068311164765038
  2. Masahide Kanayama, M.D.Greenwich, CT 068311295863728
  3. Kenneth Blau, M.D.Danbury, CT 068101780694919
  4. Linda Otieno, MDDanbury, CT 068101740860279
  5. Leila Garrett, M.D.Cos Cob, CT 068071043409667
  6. John Garofalo, MDNorwalk, CT 068501811096647
  7. Carol Cooper, M.D.Norwalk, CT 068511083869572
  8. Loredana Cuccia, MDNorwalk, CT 068511740576016

Common questions

What is Tania S. Sierra, MD's NPI number?

Tania S. Sierra, MD's National Provider Identifier (NPI) is 1356631998, issued on Apr 16, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Tania S. Sierra, MD located?

The NPPES record lists a practice address at 52 Beach RD Ste 205, Fairfield, CT, 06824. Phone: (475) 330-6406. Providers update this record themselves, so call before visiting.

How can I verify Tania S. Sierra, MD's license?

NPPES lists Connecticut license number 62554, 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 Tania S. Sierra, MD prescribe under Medicare Part D?

In 2024, Tania S. Sierra, MD had 1,619 Medicare Part D claims for 448 beneficiaries; the average among gynecology physician prescribers was 299. Part D covers Medicare prescriptions only.

What is Tania S. Sierra, MD's MIPS final score?

The 2023 MIPS final score is 93.3 of 100. 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.