Dr. Diane Tam Singer, MD
- Medicare services, 2024
- 2,236
- Medicare patients, 2024
- 758
- MIPS score, 2024
- 93
- Hospital affiliations
- 4
- Industry payments
- $52
- Practice address
- 4101 Torrance Blvd, Torrance, CA 90503
- Practice phone
- Call (310) 540-7676
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Tam Singer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Diane Tam Singer is a pathologist in Torrance, California
Dr. Tam Singer practices at Providence Little Company of Mary Medical Center Torrance in Torrance, California, part of Providence Health & Services.
Dr. Tam Singer's NPI, 1972539047, was assigned on June 23, 2006. Dr. Tam Singer graduated from SUNY Downstate Health Sciences University in 1993. Dr. Tam Singer holds California license G86805.
- NPI
- 1972539047NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183511165
- NPI enumeration date
- June 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 540-7676
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Diane Tam Singer practices at Providence Little Company of Mary Medical Center Torrance in Torrance, California
Dr. Tam Singer's primary practice is Providence Little Company of Mary Medical Center Torrance, at 4101 Torrance Blvd, Torrance, CA 90503 in Los Angeles County. The practice phone is (310) 540-7676.
- Providence Little Company of Mary Medical Center Torrance4101 Torrance Blvd, Torrance, CA 90503 · Los Angeles CountyPhone(310) 540-7676
Source: Dmand AI Affiliation Data
Dr. Diane Tam Singer is affiliated with 5 sites of care and 1 medical group
Dr. Tam Singer's primary practice is Providence Little Company of Mary Medical Center Torrance in Torrance, California, part of Providence Health & Services. Dr. Tam Singer is also affiliated with Torrance Memorial Medical Center. The medical group on file is Affiliated Pathologists Medical Group. Dmand AI also links Dr. Tam Singer to 2 more hospitals and 1 other site, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Diane Tam Singer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tam Singer practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Little Company of Mary Medical Center Torrance | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Providence Health & Services and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Diane Tam Singer is one of 1,354 pathologists in California
Anatomic pathology and clinical pathology is Dr. Tam Singer's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Tam Singer is board certified in anatomic pathology & clinical pathology by the American Board of Pathology. Dmand AI has Dr. Tam Singer's licenses on file in 4 states: California, New York, Vermont and Pennsylvania.
Specialties and state licenses
- Anatomic pathology and clinical pathology, CaliforniaPrimary
- New York license
- Vermont license
- Pennsylvania license
Pathologists near Dr. Tam Singer
Counts of pathologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Diane Tam Singer billed Medicare for 2,236 services in 2024
CMS data shows 2,236 Medicare services from Dr. Tam Singer across 22 procedure codes in 2024, for 758 Medicare patients. Medicare paid $62,035 for them.
Dr. Tam Singer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 1,9632024: 2,22513%
- Surgery
- 2023: 02024: 11
Where Dr. Tam Singer's Medicare services took place, 2024
- In an office994%
- In a facility2,13796%
Dr. Tam Singer compared with the California median for pathologists, 2024
- Dr. Tam Singer
- California median
- Medicare services
- 2,236vs 1,15394% above
- Medicare patients
- 758vs 44770% above
Medians across 1,094 pathologists in California with Dmand AI profiles that report each measure.
Dr. Tam Singer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tam Singer and other pathologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Diane Tam Singer treated 758 Medicare patients in 2024, average age 76
CMS counts 758 Medicare patients who saw Dr. Tam Singer in 2024. The largest group is 75 to 84, with 278 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 2.33, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Tam Singer's median patient age at 40, with 66% women.
Dr. Tam Singer's Medicare patients by age, 2024
Dr. Tam Singer's Medicare patients by sex, 2024
- Women44058%
- Men31842%
Chronic conditions among Dr. Tam Singer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes50%
- Chronic kidney disease45%
- Ischemic heart disease41%
- Heart failure38%
- Cancer33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tam Singer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women66%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Diane Tam Singer scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Tam Singer for performance year 2024, reported as part of a group. Dr. Tam Singer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Tam Singer's MIPS scores, performance year 2024
- 93of 100Final score
- 88.6of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Diane Tam Singer received $52 in industry payments from 2022 to 2025
CMS Open Payments shows 3 general payments to Dr. Tam Singer from 2 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Siemens Medical Solutions USA, Inc. paid the most, $28.
General payments to Dr. Tam Singer by program year, 2022 to 2025
Companies that paid Dr. Tam Singer the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Diane Tam Singer graduated from SUNY Downstate Health Sciences University
Dr. Tam Singer graduated from SUNY Downstate Health Sciences University in 1993.
- Medical school
- Board certified in anatomic pathology & clinical pathology
- Board certified in cytopathology
Source: Dmand AI Professional Profile Data
Dr. Diane Tam Singer accepts plans from 1 insurance carrier
Dr. Tam Singer is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Diane Tam Singer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Diane Tam Singer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Diane Tam Singer's NPI number?
Dr. Diane Tam Singer's NPI number is 1972539047. It was assigned on June 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Diane Tam Singer?
Dr. Diane Tam Singer is a pathologist in Torrance, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Diane Tam Singer practice?
Dr. Tam Singer practices at 4101 Torrance Blvd, Torrance, CA 90503. Dr. Tam Singer's primary practice is Providence Little Company of Mary Medical Center Torrance in Torrance, California, part of Providence Health & Services. Dmand AI also links Dr. Tam Singer to 2 hospitals and 1 other site.
What is Dr. Diane Tam Singer's office phone number?
The practice phone on file for Dr. Tam Singer is (310) 540-7676.
What is Dr. Diane Tam Singer's medical license number?
Dr. Tam Singer holds California license G86805, one of the licenses on file in 4 states.
Which states has Dr. Diane Tam Singer been licensed in?
Dmand AI has state licenses on file for Dr. Tam Singer in California (2003 to 2026), New York (1995 to 2012), Vermont (1999 to 2004) and Pennsylvania (1998 to 1999).
Which hospitals is Dr. Diane Tam Singer affiliated with?
Dr. Tam Singer practices at Providence Little Company of Mary Medical Center Torrance in Torrance, California. Dr. Tam Singer is also affiliated with Torrance Memorial Medical Center. Dmand AI links Dr. Tam Singer to 2 more hospitals.
What medical group is Dr. Diane Tam Singer part of?
Dr. Tam Singer is linked to Affiliated Pathologists Medical Group.
Does Dr. Diane Tam Singer accept Medicare?
Yes. CMS data shows Dr. Tam Singer billed Medicare for 2,236 services in 2024, and Dr. Tam Singer accepts Medicare assignment.
What is Dr. Diane Tam Singer's MIPS score?
Dr. Tam Singer's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Diane Tam Singer see?
CMS counts 758 Medicare patients who saw Dr. Tam Singer in 2024, with an average age of 76.
Is Dr. Diane Tam Singer board certified?
Yes. Dr. Tam Singer is board certified in anatomic pathology & clinical pathology by the American Board of Pathology.
What services does Dr. Diane Tam Singer bill to Medicare?
In 2024, Dr. Tam Singer's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (85060).
Where did Dr. Diane Tam Singer go to medical school?
Dr. Tam Singer graduated from SUNY Downstate Health Sciences University in 1993.
Has Dr. Diane Tam Singer received payments from drug or device companies?
CMS Open Payments shows $52 in general payments to Dr. Tam Singer from 2 companies from 2022 to 2025. The largest total came from Siemens Medical Solutions USA, Inc.
How long has Dr. Diane Tam Singer been practicing?
Dr. Tam Singer graduated from medical school in 1993, 33 years ago.
What insurance does Dr. Diane Tam Singer accept?
Dr. Tam Singer is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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