NPI registry status
Active
2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1184298101 DO
Verify on CMS → Tiffany Cullen, DO
Endocrinology, Diabetes & Metabolism Physician in Garden City, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,078 in Endocrinology, Diabetes & Metabolism 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
302
Medicare Part D claims · 93 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
50%
generic claims · 42% 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 Cullen, DO filed 302 Medicare Part D claims in 2024 as an Endocrinology, Diabetes & Metabolism Physician in Garden City, New York, prescribing 50% generic.
- 302
- Part D claims, 2024
- 50%
- generic prescribing
- ≥56th
- 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 Cullen, DO
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 1184298101), first enumerated 05/14/2021.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 302 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.
- State context
State board disciplinary context
New York statewide board action statistics are published annually — these figures describe aggregate state activity, not Tiffany Cullen, DO's individual license status. Verify directly with the state medical board.
Source: NYSBPMC annual report 2023
- 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 1184298101 · Endocrinology, Diabetes & Metabolism Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1184298101
- ENUM-RECENT 2021
- TAX-MID 8K Endocrinology, Diabetes
- RX-LIGHT 302
- BOOK-LIGHT 813 in New York
- PHOTO-ENUM Tehlil Rizwan · 2021
Tiffany Cullen, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
302 ≥ 56th percentile 56% 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 Cullen, DO 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 Cullen, DO?
Quality data not reportedPrimary specialty
Endocrinology, Diabetes & Metabolism Physician
Medicare Part D claims
302 89% vs specialty avg
Specialty distribution in New York
How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among New York 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 Endocrinology, Diabetes & Metabolism 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 | 1184298101 |
|---|---|
| Specialty | Endocrinology, Diabetes & Metabolism Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 05/14/2021 |
License & disciplinary context - New York NYSBPMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 - they are NOT specific to Tiffany Cullen, DO. To verify Tiffany Cullen, DO's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Tiffany Cullen, DO - brand share 42.0%
Endocrinology, Diabetes & Metabolism Physician average
42% brand-name claims vs 50% generic, on 302 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.
302
Total Claims
$131K
Total Drug Cost
93
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 651.033
- Total Day Supply
- 19,055
- Brand vs Generic
- 42% brand / 50% generic
- Brand Drug Cost
- $117K
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 71.1 years
- Avg HCC Risk Score
- 2.28
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 15, 65-74: 47, 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 Tiffany Cullen, DO prescribes most
Top Medicare Part D drugs by claim count, 2024
- Mounjaro
Mounjaro
34 claims
- Levothyroxine Sodium
Levothyroxine Sodium
29 claims
- Nano 2nd Gen Pen N…
Nano 2nd Gen Pen Needle
17 claims
- Metformin Hcl Er
Metformin Hcl Er
15 claims
- Alendronate Sodium 13
Alendronate Sodium
13 claims
- Rosuvastatin Calcium 12
Rosuvastatin Calcium
12 claims
| Drug | Claims |
|---|---|
| Mounjaro Tirzepatide | 34 |
| Levothyroxine Sodium | 29 |
| Nano 2nd Gen Pen Needle Pen Needle, Diabetic | 17 |
| Metformin Hcl Er Metformin Hcl | 15 |
| Alendronate Sodium | 13 |
| Rosuvastatin Calcium | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Endocrinology, Diabetes & Metabolism Physician in NY →
All providers in New York →
Compare specialties →
Endocrinology, Diabetes & Metabolism Physician Overview
How Tiffany Cullen, DO fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.
8,078
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,739
Avg Claims per Provider
Tiffany Cullen, DO's 302 claims are below the specialty average of 2,739.
Nationwide Endocrinology, Diabetes & Metabolism Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Cullen, both outside New York so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2021)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Endocrinology, Diabetes & Metabolism Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Cullen.
One of 813 Endocrinology, Diabetes & Metabolism Physician providers enrolled in New York, 5 are shown here.
Dr. Zinoviy Abelev
MD
Long Island City, NY
Dr. Jill Abelseth
M.D.
Albany, NY
Dr. Sherley Abraham
M.D.
New York, NY
Dr. Connor Abramowicz
DO
Port Jefferson, NY
Dr. Jennifer Abrams
DO
Brooklyn, NY
Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Tiffany Cullen, DO's specialty? ▼
Tiffany Cullen, DO specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Garden City, New York. Credentials: DO.
How much does Tiffany Cullen, DO prescribe under Medicare Part D? ▼
In 2024, Tiffany Cullen, DO wrote 302 Medicare Part D claims totaling $131K in drug costs for 93 beneficiaries.
Where is Tiffany Cullen, DO located? ▼
Tiffany Cullen, DO is located at 1111 FRANKLIN AVE, Garden City, NY, 11530. Phone: (516) 663-3511.
What is Tiffany Cullen, DO's NPI number? ▼
Tiffany Cullen, DO's National Provider Identifier (NPI) is 1184298101, issued on 05/14/2021.
Does Tiffany Cullen, DO prescribe more brand-name or generic drugs? ▼
Tiffany Cullen, DO's prescribing is 42% brand-name and 50% generic drugs by claim count, with $117K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 8,078 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,739 Medicare Part D claims per year.
What drugs does Tiffany Cullen, DO prescribe most often? ▼
Based on 2024 Medicare Part D data, Tiffany Cullen, DO's most frequently prescribed drugs include Mounjaro, Levothyroxine Sodium, Nano 2nd Gen Pen Needle. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tiffany Cullen, DO accept Medicare? ▼
Tiffany Cullen, DO appears in CMS Medicare data with 302 Part D claims and 93 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tiffany Cullen, DO's credentials? ▼
Tiffany Cullen, DO's NPI is 1184298101 with credentials DO. 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.