NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1528321122 M.D.
Verify on CMS → Shivani Garg, M.D.
Rheumatology Physician in New Haven, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,377 in Rheumatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
665
Medicare Part D claims · 100 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Shivani Garg, M.D. filed 665 Medicare Part D claims in 2024 as a Rheumatology Physician in New Haven, Connecticut, prescribing 93% generic.
- 665
- Part D claims, 2024
- 93%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥68th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Shivani Garg, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1528321122), first enumerated 06/19/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 665 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1528321122 · Rheumatology Physician
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1528321122
- ENUM-MID 2012
- TAX-MID 6K Rheumatology Physician
- RX-LIGHT 665
- BOOK-THIN 125 in Connecticut
- PHOTO-ENUM Sam Serafi, M.D. · 2012
Shivani Garg, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
665 ≥ 68th percentile 68% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Shivani Garg, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Shivani Garg, M.D.?
Quality data not reportedPrimary specialty
Rheumatology Physician
Medicare Part D claims
665 68% vs specialty avg
Specialty distribution in Connecticut
How Rheumatology Physician compares to other specialties among Connecticut providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Rheumatology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1528321122 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/19/2012 |
Hospital and facility affiliations
Facilities where Shivani Garg, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Yale University
North Haven, CT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Shivani Garg, M.D. - brand share 7.0%
Rheumatology Physician average
7% brand-name claims vs 93% generic, on 665 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
665
Total Claims
$152K
Total Drug Cost
100
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,064.9
- Total Day Supply
- 31,244
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $107K
- Generic Drug Cost
- $45K
- Opioid Claims
- 24 (3.6% rate)
Patient Demographics
- Average Patient Age
- 63.4 years
- Avg HCC Risk Score
- 1.81
- Gender Split
- 86% female / 14% male
- Age Distribution
- <65: 40, 65-74: 41, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Shivani Garg, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
304 claims
- Prednisone 75
Prednisone
75 claims
- Methotrexate 49
Methotrexate
49 claims
- Mycophenolate Mofe… 30
Mycophenolate Mofetil
30 claims
- Azathioprine 28
Azathioprine
28 claims
- Benlysta 21
Benlysta
21 claims
- Gabapentin 17
Gabapentin
17 claims
- Cevimeline Hcl 16
Cevimeline Hcl
16 claims
| Drug | Claims |
|---|---|
| Hydroxychloroquine Sulfate | 304 |
| Prednisone | 75 |
| Methotrexate Methotrexate Sodium | 49 |
| Mycophenolate Mofetil | 30 |
| Azathioprine | 28 |
| Benlysta Belimumab | 21 |
| Gabapentin | 17 |
| Cevimeline Hcl | 16 |
| Allopurinol | 13 |
| Leflunomide | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Shivani Garg, M.D. fits within the Rheumatology Physician landscape nationally.
6,377
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,058
Avg Claims per Provider
Shivani Garg, M.D.'s 665 claims are below the specialty average of 2,058.
Nationwide Rheumatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Garg, both outside Connecticut so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Garg.
One of 125 Rheumatology Physician providers enrolled in Connecticut, 5 are shown here.
Dr. Crispin Abarientos
M.D.
Middletown, CT
Dr. Aryeh Abeles
M.D.
Meriden, CT
Dr. Micha Abeles
M.D.
Meriden, CT
Jackilyn Annelli
PA
Norwich, CT
Dr. Sandra Apenteng
MD
Glastonbury, CT
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Shivani Garg, M.D.'s specialty? ▼
Shivani Garg, M.D. specializes in Rheumatology Physician and practices in New Haven, Connecticut. Credentials: M.D..
How much does Shivani Garg, M.D. prescribe under Medicare Part D? ▼
In 2024, Shivani Garg, M.D. wrote 665 Medicare Part D claims totaling $152K in drug costs for 100 beneficiaries.
Where is Shivani Garg, M.D. located? ▼
Shivani Garg, M.D. is located at 20 YORK ST, New Haven, CT, 06510. Phone: (203) 688-4242.
What is Shivani Garg, M.D.'s NPI number? ▼
Shivani Garg, M.D.'s National Provider Identifier (NPI) is 1528321122, issued on 06/19/2012.
Does Shivani Garg, M.D. prescribe more brand-name or generic drugs? ▼
Shivani Garg, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $107K in brand drug costs.
Does Shivani Garg, M.D. prescribe opioids? ▼
Yes, Shivani Garg, M.D. had 24 opioid claims in 2024 with an opioid prescribing rate of 3.6%.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,377 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,058 Medicare Part D claims per year.
What drugs does Shivani Garg, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Shivani Garg, M.D.'s most frequently prescribed drugs include Hydroxychloroquine Sulfate, Prednisone, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Shivani Garg, M.D. accept Medicare? ▼
Shivani Garg, M.D. appears in CMS Medicare data with 665 Part D claims and 100 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Shivani Garg, M.D.'s credentials? ▼
Shivani Garg, M.D.'s NPI is 1528321122 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.