Dr. Nicholas F. Fleming, MD

  • San Francisco, CA
  • Internist
NPI1104892199
Medicare services, 2023
234
Part D claims, 2024
613
MIPS score, 2024
85
Industry payments
$993
Affiliated sites
2
Practice address
500 Parnassus Ave, San Francisco, CA 94143
Practice phone
Call (415) 476-1281
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSF Student Health and Counseling Services

School-Based Health Center · San Francisco, California

See all 4 affiliations

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Dr. Nicholas F. Fleming is an internist in San Francisco, California

Dr. Fleming practices at UCSF Student Health and Counseling Services in San Francisco, California.

Dr. Fleming's NPI, 1104892199, was assigned on February 28, 2006. Dr. Fleming graduated from Harvard Medical School in 1996. Dr. Fleming's South Carolina license number on file is 21363.

NPI and contact details
NPI enumeration date
February 28, 2006
NPI status
Active
Practice phone
(415) 476-1281
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
56
Medical school graduation
1996

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Nicholas F. Fleming practices at UCSF Student Health and Counseling Services in San Francisco, California

Dr. Fleming's primary practice is UCSF Student Health and Counseling Services, at 500 Parnassus Ave, San Francisco, CA 94143. The practice phone is (415) 476-1281.

  • UCSF Student Health and Counseling Services
    500 Parnassus Ave, San Francisco, CA 94143Phone(415) 476-1281

Source: Dmand AI Affiliation Data

Dr. Nicholas F. Fleming is affiliated with 2 sites of care and 2 medical groups

Dr. Fleming's primary practice is UCSF Student Health and Counseling Services in San Francisco, California. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Fleming to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Fleming

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Nicholas F. Fleming's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fleming practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSF Student Health and Counseling ServicesAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Nicholas F. Fleming is one of 16,751 internists in California

Internal medicine is Dr. Fleming's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Fleming is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Fleming's licenses on file in 4 states: South Carolina, California, Montana and Massachusetts.

Specialties and state licenses

  • Internal medicine, South CarolinaPrimaryLicense 21363 · 1999 to 2015 · taxonomy 207R00000X
  • California license2012 to 2026
  • Montana license2020 to 2026
  • Massachusetts license1999 to 2012

Clinical focus

Dmand AI lists acute skin infection, alzheimer's disease, arthritis, atrial fibrillation and flutter, cardiomyopathy, cerebrovascular disease, chronic anemia and chronic diabetes among the conditions Dr. Fleming treats.

Internists near Dr. Fleming

Counts of internists 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. Nicholas F. Fleming billed Medicare for 234 services in 2023

CMS data shows 234 Medicare services from Dr. Fleming across 4 procedure codes in 2023. Medicare paid $23,638 for them. Every service was in an office.

Medicare services, 2023234
Paid by Medicare$23,638
Procedure codes4

Dr. Fleming's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Office and hospital visits
2022: 1492023: 1629%
Other services
2022: 642023: 7213%

Dr. Fleming compared with the California median for internists, 2023

  • Dr. Fleming
  • California median
Medicare services
234vs 36135% below
Part D claims
238vs 42143% below

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Fleming's most billed Medicare procedure codes, 2023

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Fleming

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Nicholas F. Fleming's patients have a median age of 72

Across all payers, Dmand AI patient panel data puts Dr. Fleming's median patient age at 72, with 32% women.

Dr. Fleming's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women32%
  • Men66%

Source: Dmand AI Patient Panel Data

Dr. Nicholas F. Fleming wrote 613 Medicare Part D claims in 2024

In 2024, Dr. Fleming wrote 613 Medicare Part D claims for 111 patients. 84% of them were for generic drugs. CMS names the drug for 238 of them, across 13 drugs with 11 or more claims each, at $21,793 in total drug cost. In 2023, CMS named 886 claims across 35 drugs.

Part D claims, 2024613
Drugs named by CMS13
Total drug cost$21,793
Part D patients111

Dr. Fleming's Part D claims by kind of drug, 2024

  • Generic517 claims84%
  • Brand-name and other96 claims16%

Dr. Fleming's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Fleming's Part D claims, 2024

  • Antibiotics3%19 of 613 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 8862024: 23873%

Drugs named by CMS: 13 in 2024, 35 in 2023.

See all prescribing by Dr. Fleming

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Nicholas F. Fleming scored 85 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Fleming for performance year 2024, reported as part of a group.

Dr. Fleming's MIPS scores, performance year 2024

  • 85of 100Final score
  • 81.1of 100Quality
  • 40of 100Improvement Activities
  • 71of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Nicholas F. Fleming received $993 in industry payments from 2019 to 2025

CMS Open Payments shows 19 general payments to Dr. Fleming from 7 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 52% of the total. Medtronic USA, Inc. paid the most, $675.

General payments to Dr. Fleming by program year, 2019 to 2025

General payments to Dr. Fleming by kind, 2019 to 2025

$993in total
  • Food and beverage$52052%
  • Travel and lodging$47348%

Companies that paid Dr. Fleming the most, 2019 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Fleming

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Nicholas F. Fleming graduated from Harvard Medical School

Dr. Fleming graduated from Harvard Medical School in 1996.

  1. Medical schoolHarvard Medical School
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Nicholas F. Fleming accepts plans from 4 insurance carriers

Dr. Fleming is in network with 4 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City

Plan types Dr. Fleming accepts, by number of carriers

  1. HMO3
  2. EPO2
  3. POS2
  4. PPO2
  5. Medicare1

Source: Dmand AI Insurance Network Data

Sources for Dr. Nicholas F. Fleming's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Nicholas F. Fleming

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. Nicholas F. Fleming's NPI number?

Dr. Nicholas F. Fleming's NPI number is 1104892199. It was assigned on February 28, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Nicholas F. Fleming?

Dr. Nicholas F. Fleming is an internist in San Francisco, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Nicholas F. Fleming practice?

Dr. Fleming practices at 500 Parnassus Ave, San Francisco, CA 94143. Dr. Fleming's primary practice is UCSF Student Health and Counseling Services in San Francisco, California. Dmand AI also links Dr. Fleming to 1 group practice or clinic and 1 medical group.

What is Dr. Nicholas F. Fleming's office phone number?

The practice phone on file for Dr. Fleming is (415) 476-1281.

What is Dr. Nicholas F. Fleming's medical license number?

Dr. Fleming's South Carolina license number on file is 21363, one of the licenses on file in 4 states.

Which states has Dr. Nicholas F. Fleming been licensed in?

Dmand AI has state licenses on file for Dr. Fleming in South Carolina (1999 to 2015), California (2012 to 2026), Montana (2020 to 2026) and Massachusetts (1999 to 2012).

What medical group is Dr. Nicholas F. Fleming part of?

Dr. Fleming is linked to UCSF Pediatrics. Dmand AI links Dr. Fleming to 1 more medical group.

Does Dr. Nicholas F. Fleming accept Medicare?

Yes. CMS data shows Dr. Fleming billed Medicare for 234 services in 2023.

What is Dr. Nicholas F. Fleming's MIPS score?

Dr. Fleming's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.

Is Dr. Nicholas F. Fleming board certified?

Yes. Dr. Fleming is board certified in internal medicine by the American Board of Internal Medicine.

Show 6 more questionsShow fewer questions

What services does Dr. Nicholas F. Fleming bill to Medicare?

In 2023, Dr. Fleming's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and office visit, established patient (99213).

Where did Dr. Nicholas F. Fleming go to medical school?

Dr. Fleming graduated from Harvard Medical School in 1996.

What drugs does Dr. Nicholas F. Fleming prescribe most?

In 2024 Medicare Part D data, Dr. Fleming's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.

Has Dr. Nicholas F. Fleming received payments from drug or device companies?

CMS Open Payments shows $993 in general payments to Dr. Fleming from 7 companies from 2019 to 2025. The largest total came from Medtronic USA, Inc.

How long has Dr. Nicholas F. Fleming been practicing?

Dr. Fleming graduated from medical school in 1996, 30 years ago.

What insurance does Dr. Nicholas F. Fleming accept?

Dr. Fleming is in network with 4 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.

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