NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1265502876 M.D.
Verify on CMS → Priya Singh, M.D.
Hematology (Internal Medicine) Physician in San Diego, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,451 in Hematology (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
482
Medicare Part D claims · 116 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$862.31
35 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
Priya Singh, M.D. filed 482 Medicare Part D claims in 2023 as a Hematology (Internal Medicine) Physician in San Diego, California, prescribing 88% generic.
- 482
- Part D claims, 2023
- 88%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Priya Singh, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
482 Top 38% higher than 62% 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 certification likely (heuristic, not verified)
Priya Singh, 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 Priya Singh, M.D.?
Quality data not reportedPrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
482 30% vs specialty avg
Specialty distribution in California
How Hematology (Internal Medicine) Physician compares to other specialties among California 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 Hematology (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).
Priya Singh, M.D. appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding M.D. credentials at 8010 FROST ST STE 301, San Diego, CA, 92123, with a listed phone of (858) 939-6622. NPI 1265502876 was issued on 11/09/2006.
Medicare Part D records for calendar year 2023 show 482 prescription claims written by this provider, covering 116 Medicare beneficiaries and totaling roughly $681K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 7.3%.
Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,451 enrolled providers across 50 states and an average of 693 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 | 1265502876 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 11/09/2006 |
Hospital and facility affiliations
Facilities where Priya Singh, 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.
Sharp Rees-Stealy Medical Group Inc
San Diego, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Priya Singh, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$862
Largest payer
Celgene Corporation
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.
License & disciplinary context - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Priya Singh, M.D.. To verify Priya Singh, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Priya Singh, M.D. - brand share 12.0%
Hematology (Internal Medicine) Physician average
12% brand-name claims vs 88% generic, on 482 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.
482
Total Claims
$681K
Total Drug Cost
116
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 667
- Total Day Supply
- 15,851
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $575K
- Generic Drug Cost
- $105K
- Opioid Claims
- 35 (7.3% rate)
Patient Demographics
- Average Patient Age
- 73.7 years
- Avg HCC Risk Score
- 1.59
- Gender Split
- 68% female / 32% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Priya Singh, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ondansetron Odt
Ondansetron Odt
68 claims
- Prochlorperazine M…
Prochlorperazine Maleate
65 claims
- Anastrozole
Anastrozole
56 claims
- Prednisone
Prednisone
37 claims
- Abiraterone Acetate
Abiraterone Acetate
29 claims
- Gabapentin 20
Gabapentin
20 claims
- Dexamethasone 18
Dexamethasone
18 claims
- Morphine Sulfate Er 16
Morphine Sulfate Er
16 claims
| Drug | Claims |
|---|---|
| Ondansetron Odt Ondansetron | 68 |
| Prochlorperazine Maleate | 65 |
| Anastrozole | 56 |
| Prednisone | 37 |
| Abiraterone Acetate | 29 |
| Gabapentin | 20 |
| Dexamethasone | 18 |
| Morphine Sulfate Er Morphine Sulfate | 16 |
| Ibrance Palbociclib | 11 |
| Kisqali Ribociclib Succinate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in CA →
All providers in California →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Priya Singh, M.D. fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,451
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider
Priya Singh, M.D.'s 482 claims are below the specialty average of 693.
Nearby Hematology (Internal Medicine) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Singh.
Dr. Haifaa Abdulhaq
MD
Fresno, CA
Dr. John Adamson
MD
San Diego, CA
Dr. Idoroenyi Amanam
M.D.
Duarte, CA
Dr. Ian Anderson
M.D.
Santa Rosa, CA
Dr. Sally Arai
MD
Stanford, CA
Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →
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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology (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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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Priya Singh, M.D.'s specialty? ▼
Priya Singh, M.D. specializes in Hematology (Internal Medicine) Physician and practices in San Diego, California. Credentials: M.D..
How much does Priya Singh, M.D. prescribe under Medicare Part D? ▼
In 2023, Priya Singh, M.D. wrote 482 Medicare Part D claims totaling $681K in drug costs for 116 beneficiaries.
Where is Priya Singh, M.D. located? ▼
Priya Singh, M.D. is located at 8010 FROST ST STE 301, San Diego, CA, 92123. Phone: (858) 939-6622.
What is Priya Singh, M.D.'s NPI number? ▼
Priya Singh, M.D.'s National Provider Identifier (NPI) is 1265502876, issued on 11/09/2006.
Does Priya Singh, M.D. prescribe more brand-name or generic drugs? ▼
Priya Singh, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $575K in brand drug costs.
Does Priya Singh, M.D. prescribe opioids? ▼
Yes, Priya Singh, M.D. had 35 opioid claims in 2023 with an opioid prescribing rate of 7.3%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,451 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
What drugs does Priya Singh, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Priya Singh, M.D.'s most frequently prescribed drugs include Ondansetron Odt, Prochlorperazine Maleate, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Priya Singh, M.D. accept Medicare? ▼
Priya Singh, M.D. appears in CMS Medicare data with 482 Part D claims and 116 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Priya Singh, M.D.'s credentials? ▼
Priya Singh, M.D.'s NPI is 1265502876 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.
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 May 2026.