NPI registry status
Active
2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1770213100 MD
Verify on CMS → Tiffany Tsay, MD
Geriatric Medicine (Family Medicine) Physician in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,792 in Geriatric Medicine (Family Medicine) 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
993
Medicare Part D claims · 159 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
86%
generic claims · 13% 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
Tiffany Tsay, MD filed 993 Medicare Part D claims in 2024 as a Geriatric Medicine (Family Medicine) Physician in Baltimore, Maryland, prescribing 86% generic.
- 993
- Part D claims, 2024
- 86%
- generic prescribing
- ≥74th
- 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 Tiffany Tsay, MD
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 1770213100), first enumerated 06/17/2022.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 993 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
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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 1770213100 · Geriatric Medicine (Family Medicine) Physician
NPI-10 · ENUM-RECENT · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1770213100
- ENUM-RECENT 2022
- TAX-NARROW 1,792
- RX-LIGHT 993
- BOOK-THIN 32 in Maryland
- PHOTO-ENUM Carol Muller, FNP-C · 2022
Tiffany Tsay, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
993 ≥ 74th percentile 74% 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-eligible specialty (heuristic, not verified)
Tiffany Tsay, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Tiffany Tsay, MD?
Quality data not reportedPrimary specialty
Geriatric Medicine (Family Medicine) Physician
Medicare Part D claims
993 80% vs specialty avg
Specialty distribution in Maryland
How Geriatric Medicine (Family Medicine) Physician compares to other specialties among Maryland 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 Geriatric Medicine (Family Medicine) 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 | 1770213100 |
|---|---|
| Specialty | Geriatric Medicine (Family Medicine) Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 06/17/2022 |
Brand vs generic prescribing mix · Typical
Tiffany Tsay, MD - brand share 13.0%
Geriatric Medicine (Family Medicine) Physician average
13% brand-name claims vs 86% generic, on 993 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.
993
Total Claims
$132K
Total Drug Cost
159
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,299.067
- Total Day Supply
- 66,996
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $116K
- Generic Drug Cost
- $15K
- Opioid Claims
- 25 (2.5% rate)
- Antibiotic Claims
- 23
Patient Demographics
- Average Patient Age
- 76.0 years
- Avg HCC Risk Score
- 1.61
- Gender Split
- 70% female / 30% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Tiffany Tsay, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
62 claims
- Levothyroxine Sodium
Levothyroxine Sodium
40 claims
- Lisinopril
Lisinopril
38 claims
- Pantoprazole Sodium
Pantoprazole Sodium
32 claims
- Amlodipine Besylate
Amlodipine Besylate
29 claims
- Sertraline Hcl
Sertraline Hcl
28 claims
- Metformin Hcl 24
Metformin Hcl
24 claims
- Rosuvastatin Calcium 24
Rosuvastatin Calcium
24 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 62 |
| Levothyroxine Sodium | 40 |
| Lisinopril | 38 |
| Pantoprazole Sodium | 32 |
| Amlodipine Besylate | 29 |
| Sertraline Hcl | 28 |
| Metformin Hcl | 24 |
| Rosuvastatin Calcium | 24 |
| Gabapentin | 21 |
| Metoprolol Succinate | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Geriatric Medicine (Family Medicine) Physician in MD →
All providers in Maryland →
Compare specialties →
Geriatric Medicine (Family Medicine) Physician Overview
How Tiffany Tsay, MD fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.
1,792
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,917
Avg Claims per Provider
Tiffany Tsay, MD's 993 claims are below the specialty average of 4,917.
Nationwide Geriatric Medicine (Family Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Tsay, both outside Maryland so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Geriatric Medicine (Family Medicine) Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Tsay.
One of 32 Geriatric Medicine (Family Medicine) Physician providers enrolled in Maryland, 5 are shown here.
Grace Aboagye
La Plata, MD
Dr. Farzana Ajmal
MD
Germantown, MD
Dr. Lovie Averill
M.D.
Glen Burnie, MD
Dr. Deepa Balasubramaniam
M.D
Silver Spring, MD
Irina Baum
NP
Hampstead, MD
Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Tiffany Tsay, MD's specialty? ▼
Tiffany Tsay, MD specializes in Geriatric Medicine (Family Medicine) Physician and practices in Baltimore, Maryland. Credentials: MD.
How much does Tiffany Tsay, MD prescribe under Medicare Part D? ▼
In 2024, Tiffany Tsay, MD wrote 993 Medicare Part D claims totaling $132K in drug costs for 159 beneficiaries.
Where is Tiffany Tsay, MD located? ▼
Tiffany Tsay, MD is located at 5505 HOPKINS BAYVIEW CIR TERRACE LEVEL 02, Baltimore, MD, 21224. Phone: (410) 550-0925.
What is Tiffany Tsay, MD's NPI number? ▼
Tiffany Tsay, MD's National Provider Identifier (NPI) is 1770213100, issued on 06/17/2022.
Does Tiffany Tsay, MD prescribe more brand-name or generic drugs? ▼
Tiffany Tsay, MD's prescribing is 13% brand-name and 86% generic drugs by claim count, with $116K in brand drug costs.
Does Tiffany Tsay, MD prescribe opioids? ▼
Yes, Tiffany Tsay, MD had 25 opioid claims in 2024 with an opioid prescribing rate of 2.5%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 1,792 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,917 Medicare Part D claims per year.
What drugs does Tiffany Tsay, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Tiffany Tsay, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tiffany Tsay, MD accept Medicare? ▼
Tiffany Tsay, MD appears in CMS Medicare data with 993 Part D claims and 159 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tiffany Tsay, MD's credentials? ▼
Tiffany Tsay, MD's NPI is 1770213100 with credentials MD. 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.