NPI registry status
Active
2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1295994721 M.D.
Verify on CMS → Ann Celeste Dimaya, M.D.
Geriatric Medicine (Internal Medicine) Physician in East 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 4,161 in Geriatric Medicine (Internal 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
4K
Medicare Part D claims · 176 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
77%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$4.8K
253 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ann Celeste Dimaya, M.D. filed 4,476 Medicare Part D claims in 2023 as a Geriatric Medicine (Internal Medicine) Physician in East Haven, Connecticut, prescribing 77% generic.
- 4K
- Part D claims, 2023
- 77%
- generic prescribing
- $4.8K
- industry payments (Sunshine Act)
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.
Ann Celeste Dimaya, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,476 Top 7% higher than 93% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Ann Celeste Dimaya, M.D. 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 Ann Celeste Dimaya, M.D.?
Quality data not reportedPrimary specialty
Geriatric Medicine (Internal Medicine) Physician
Medicare Part D claims
4,476 1% vs specialty avg
Specialty distribution in Connecticut
How Geriatric Medicine (Internal Medicine) 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 Geriatric Medicine (Internal 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).
Ann Celeste Dimaya, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding M.D. credentials at 190 MAIN ST, East Haven, CT, 06512, with a listed phone of (203) 467-2101. NPI 1295994721 was issued on 06/09/2008.
Medicare Part D records for calendar year 2023 show 4,476 prescription claims written by this provider, covering 176 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 22% brand-name and 77% generic by claim count, with an opioid prescribing rate of 2.1%.
Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1295994721 |
|---|---|
| Specialty | Geriatric Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/09/2008 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Ann Celeste Dimaya, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$4.8K
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Ann Celeste Dimaya, M.D. - brand share 22.0%
Geriatric Medicine (Internal Medicine) Physician average
22% brand-name claims vs 77% generic, on 4,476 2023 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 2023.
4,476
Total Claims
$1.1M
Total Drug Cost
176
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,617
- Total Day Supply
- 247,995
- Brand vs Generic
- 22% brand / 77% generic
- Brand Drug Cost
- $1.0M
- Generic Drug Cost
- $125K
- Opioid Claims
- 94 (2.1% rate)
- Antibiotic Claims
- 171
Patient Demographics
- Average Patient Age
- 67.0 years
- Avg HCC Risk Score
- 1.60
- Gender Split
- 70% female / 30% male
- Age Distribution
- <65: 62, 65-74: 66, 75-84: 34, 85+: 14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ann Celeste Dimaya, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
151 claims
- Metoprolol Succinate
Metoprolol Succinate
111 claims
- Pantoprazole Sodium
Pantoprazole Sodium
104 claims
- Alprazolam
Alprazolam
101 claims
- Amlodipine Besylate
Amlodipine Besylate
100 claims
- Fluticasone Propio…
Fluticasone Propionate
81 claims
- Levocetirizine Dih…
Levocetirizine Dihydrochloride
80 claims
- Levothyroxine Sodium
Levothyroxine Sodium
76 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 151 |
| Metoprolol Succinate | 111 |
| Pantoprazole Sodium | 104 |
| Alprazolam | 101 |
| Amlodipine Besylate | 100 |
| Fluticasone Propionate | 81 |
| Levocetirizine Dihydrochloride | 80 |
| Levothyroxine Sodium | 76 |
| Furosemide | 75 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 64 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Geriatric Medicine (Internal Medicine) Physician in CT →
All providers in Connecticut →
Compare specialties →
Geriatric Medicine (Internal Medicine) Physician Overview
How Ann Celeste Dimaya, M.D. fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.
4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider
Ann Celeste Dimaya, M.D.'s 4,476 claims are above the specialty average of 4,450.
Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Dimaya.
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Geriatric Medicine (Internal Medicine) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Ann Celeste Dimaya, M.D.'s specialty? ▼
Ann Celeste Dimaya, M.D. specializes in Geriatric Medicine (Internal Medicine) Physician and practices in East Haven, Connecticut. Credentials: M.D..
How much does Ann Celeste Dimaya, M.D. prescribe under Medicare Part D? ▼
In 2023, Ann Celeste Dimaya, M.D. wrote 4,476 Medicare Part D claims totaling $1.1M in drug costs for 176 beneficiaries.
Where is Ann Celeste Dimaya, M.D. located? ▼
Ann Celeste Dimaya, M.D. is located at 190 MAIN ST, East Haven, CT, 06512. Phone: (203) 467-2101.
What is Ann Celeste Dimaya, M.D.'s NPI number? ▼
Ann Celeste Dimaya, M.D.'s National Provider Identifier (NPI) is 1295994721, issued on 06/09/2008.
Does Ann Celeste Dimaya, M.D. prescribe more brand-name or generic drugs? ▼
Ann Celeste Dimaya, M.D.'s prescribing is 22% brand-name and 77% generic drugs by claim count, with $1.0M in brand drug costs.
Does Ann Celeste Dimaya, M.D. prescribe opioids? ▼
Yes, Ann Celeste Dimaya, M.D. had 94 opioid claims in 2023 with an opioid prescribing rate of 2.1%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does Ann Celeste Dimaya, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ann Celeste Dimaya, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Celeste Dimaya, M.D. accept Medicare? ▼
Ann Celeste Dimaya, M.D. appears in CMS Medicare data with 4,476 Part D claims and 176 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Celeste Dimaya, M.D.'s credentials? ▼
Ann Celeste Dimaya, M.D.'s NPI is 1295994721 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 (2023). 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 April 2026 (NPPES) / 2023 (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
Compiled from official public sources by the PlainDoctor editorial team.