Dr. Leigh Howard Nadler, MD
- Medicare services, 2024
- 508
- Medicare patients, 2024
- 217
- Part D claims, 2024
- 722
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 1050 Bower Hill Rd, Pittsburgh, PA 15243
- Practice phone
- Call (412) 572-6192
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St. Clair Medical Group Colorectal Surgery
Pittsburgh, Pennsylvania
Find Dr. Nadler'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. Leigh Howard Nadler is a colorectal surgeon in Pittsburgh, Pennsylvania
Dr. Nadler practices at St. Clair Medical Group Colorectal Surgery in Pittsburgh, Pennsylvania.
Dr. Nadler's NPI, 1780604280, was assigned on July 20, 2006. Dr. Nadler graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1984. Dr. Nadler holds Pennsylvania license MD045472E.
- NPI
- 1780604280NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406021930
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (412) 572-6192
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Leigh Howard Nadler practices at St. Clair Medical Group Colorectal Surgery in Pittsburgh, Pennsylvania
Dr. Nadler's primary practice is St. Clair Medical Group Colorectal Surgery, at 1050 Bower Hill Rd, Pittsburgh, PA 15243 in Allegheny County. The practice phone is (412) 572-6192.
- St. Clair Medical Group Colorectal Surgery1050 Bower Hill Rd, Pittsburgh, PA 15243 · Allegheny CountyPhone(412) 572-6192
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Leigh Howard Nadler is affiliated with 5 sites of care and 2 medical groups
Dr. Nadler's primary practice is St. Clair Medical Group Colorectal Surgery in Pittsburgh, Pennsylvania. Dr. Nadler is also affiliated with St. Clair Health. The medical group on file is St. Clair Medical Group Psychiatry. Dmand AI also links Dr. Nadler to 2 more group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Leigh Howard Nadler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nadler practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Clair Medical Group Colorectal Surgery | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leigh Howard Nadler is one of 114 colorectal surgeons in Pennsylvania
Colon and rectal surgery is Dr. Nadler's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Nadler is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dmand AI has Dr. Nadler's licenses on file in 2 states: Pennsylvania and Illinois.
Specialties and state licenses
- Colon and rectal surgery, PennsylvaniaPrimary
- Illinois license
Clinical focus
Dmand AI lists colonoscopy, colon removal, gastrointestinal obstruction and hemorrhoids among the conditions Dr. Nadler treats.
Colorectal surgeons near Dr. Nadler
Counts of colorectal surgeons 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. Leigh Howard Nadler billed Medicare for 508 services in 2024
CMS data shows 508 Medicare services from Dr. Nadler across 11 procedure codes in 2024, for 217 Medicare patients. Medicare paid $55,949 for them.
Dr. Nadler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2962024: 36523%
- Surgery
- 2023: 1862024: 10941%
- Other services
- 2023: 02024: 34
Where Dr. Nadler's Medicare services took place, 2024
- In an office24348%
- In a facility26552%
Dr. Nadler compared with the Pennsylvania median for colorectal surgeons, 2024
- Dr. Nadler
- Pennsylvania median
- Medicare services
- 508vs 30069% above
- Medicare patients
- 217vs 208Close to median
- Part D claims
- 604vs 847.2 times
Medians across 111 colorectal surgeons in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Nadler'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.
Need commercial claims for Dr. Nadler?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nadler and other colorectal surgeons in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leigh Howard Nadler treated 217 Medicare patients in 2024, average age 74
CMS counts 217 Medicare patients who saw Dr. Nadler in 2024. The largest group is 65 to 74, with 118 patients. 71% of them have high blood pressure, and 71% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nadler's median patient age at 72, with 48% women.
Dr. Nadler's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nadler's Medicare patients by sex, 2024
- Women12357%
- Men9443%
Chronic conditions among Dr. Nadler's Medicare patients, 2024
- High blood pressure71%
- High cholesterol71%
- Arthritis47%
- Cancer37%
- Anxiety32%
- Diabetes27%
- Mood disorders27%
- Depression26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nadler'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
- Women48%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Leigh Howard Nadler wrote 722 Medicare Part D claims in 2024
In 2024, Dr. Nadler wrote 722 Medicare Part D claims for 230 patients. 89% of them were for generic drugs. CMS names the drug for 604 of them, across 18 drugs with 11 or more claims each, at $34,693 in total drug cost. In 2023, CMS named 581 claims across 16 drugs.
Dr. Nadler's Part D claims by kind of drug, 2024
- Generic645 claims89%
- Brand-name77 claims11%
Dr. Nadler'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. Nadler's Part D claims, 2024
- Opioids17%122 of 722 claims
- Antibiotics29%212 of 722 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: 5812024: 6044%
Drugs named by CMS: 18 in 2024, 16 in 2023.
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. Leigh Howard Nadler ranks in the 74th percentile for colonoscopy in Medicare
Dr. Nadler accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 80 procedures of colonoscopy by Dr. Nadler, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Nadler ranks in Medicare procedure volume
- Colonoscopy
- 74th percentile80 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Leigh Howard Nadler has 1 publication on record
Dmand AI links 1 paper to Dr. Nadler.
Recent publications by Dr. Nadler
See who Dr. Nadler researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nadler works with, so you can find a warm path to the right colorectal surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Leigh Howard Nadler received $7,344 in industry payments from 2016 to 2025
CMS Open Payments shows 116 general payments to Dr. Nadler from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 39% of the total. Intuitive Surgical, Inc. paid the most, $5,371.
General payments to Dr. Nadler by program year, 2016 to 2025
General payments to Dr. Nadler by kind, 2016 to 2025
- Food and beverage$2,89339%
- Education$2,50034%
- Travel and lodging$1,57421%
- Gifts$3775%
Companies that paid Dr. Nadler the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Leigh Howard Nadler has 5 awards and honors on record
Dmand AI lists 5 awards for Dr. Nadler, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Nadler
- 2014
- Regional Top Doctor
- Top Doctor
- 2013
- CMS Stage 1 EHR
- 1989
- Ginsburg Surgical Chief Resident Award
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Leigh Howard Nadler graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Nadler graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1984. Dr. Nadler is a member of ACS and ASCRS.
- Medical school
- Board certified in colon & rectal surgery
Source: Dmand AI Professional Profile Data
Dr. Leigh Howard Nadler accepts plans from 18 insurance carriers
Dr. Nadler is in network with 18 carriers, including Aetna, Highmark and HCSC. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Highmark
- HCSC
- United Healthcare
- Cigna
- Elevance
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- +10 more carriersWith a free account
Plan types Dr. Nadler accepts, by number of carriers
- PPO12
- Medicare10
- HMO9
- EPO5
- POS5
Source: Dmand AI Insurance Network Data
Sources for Dr. Leigh Howard Nadler'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Leigh Howard Nadler
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. Leigh Howard Nadler's NPI number?
Dr. Leigh Howard Nadler's NPI number is 1780604280. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Leigh Howard Nadler?
Dr. Leigh Howard Nadler is a colorectal surgeon in Pittsburgh, Pennsylvania. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Leigh Howard Nadler practice?
Dr. Nadler practices at 1050 Bower Hill Rd, Pittsburgh, PA 15243. Dr. Nadler's primary practice is St. Clair Medical Group Colorectal Surgery in Pittsburgh, Pennsylvania. Dmand AI also links Dr. Nadler to 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. Leigh Howard Nadler's office phone number?
The practice phone on file for Dr. Nadler is (412) 572-6192.
What is Dr. Leigh Howard Nadler's medical license number?
Dr. Nadler holds Pennsylvania license MD045472E, one of the licenses on file in 2 states.
Which states has Dr. Leigh Howard Nadler been licensed in?
Dmand AI has state licenses on file for Dr. Nadler in Pennsylvania (1990 to 2026) and Illinois (1989 to 1990).
Which hospitals is Dr. Leigh Howard Nadler affiliated with?
Dr. Nadler is affiliated with St. Clair Health.
What medical group is Dr. Leigh Howard Nadler part of?
Dr. Nadler is linked to St. Clair Medical Group Psychiatry. Dmand AI links Dr. Nadler to 1 more medical group.
Does Dr. Leigh Howard Nadler accept Medicare?
Yes. CMS data shows Dr. Nadler billed Medicare for 508 services in 2024, and Dr. Nadler accepts Medicare assignment.
How many Medicare patients does Dr. Leigh Howard Nadler see?
CMS counts 217 Medicare patients who saw Dr. Nadler in 2024, with an average age of 74.
Show 8 more questionsShow fewer questions
Is Dr. Leigh Howard Nadler board certified?
Yes. Dr. Nadler is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery.
What services does Dr. Leigh Howard Nadler bill to Medicare?
In 2024, Dr. Nadler's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and surgery: digestive system (46600).
Where did Dr. Leigh Howard Nadler go to medical school?
Dr. Nadler graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1984.
What drugs does Dr. Leigh Howard Nadler prescribe most?
In 2024 Medicare Part D data, Dr. Nadler's most prescribed drugs by claims were Oxycodone HCl, Neomycin Sulfate and Ondansetron HCl.
Has Dr. Leigh Howard Nadler received payments from drug or device companies?
CMS Open Payments shows $7,344 in general payments to Dr. Nadler from 21 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Leigh Howard Nadler been practicing?
Dr. Nadler graduated from medical school in 1984, 42 years ago.
Does Dr. Leigh Howard Nadler do research?
Dmand AI links 1 publication to Dr. Nadler.
What insurance does Dr. Leigh Howard Nadler accept?
Dr. Nadler is in network with 18 carriers, including Aetna, Highmark and HCSC. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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