Dr. Nancey Mae Hahn, MD
- Medicare services, 2024
- 173
- Medicare patients, 2024
- 136
- Part D claims, 2024
- 133
- Hospital affiliations
- 5
- Industry payments
- $3,430
- Practice address
- 255 West Lancaster Avenue, Paoli, PA 19301
- Practice phone
- Call (610) 648-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hahn's professional email, personal email and mobile number
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Dr. Nancey Mae Hahn is an OB-GYN in Paoli, Pennsylvania
Dr. Hahn practices at Paoli Hospital in Paoli, Pennsylvania, part of Main Line Health System.
Dr. Hahn's NPI, 1518128024, was assigned on June 18, 2008. Dr. Hahn graduated from University of Texas Medical School at San Antonio in 2008. Dr. Hahn holds Pennsylvania license MD445306.
- NPI
- 1518128024NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416113527
- NPI enumeration date
- June 18, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (610) 648-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nancey Mae Hahn practices at Paoli Hospital in Paoli, Pennsylvania
Dr. Hahn's primary practice is Paoli Hospital, at 255 West Lancaster Avenue, Paoli, PA 19301 in Chester County. The practice phone is (610) 648-1000.
- Paoli Hospital255 West Lancaster Avenue, Paoli, PA 19301 · Chester CountyPhone(610) 648-1000
Source: Dmand AI Affiliation Data
Dr. Nancey Mae Hahn is affiliated with 5 sites of care and 2 medical groups
Dr. Hahn's primary practice is Paoli Hospital in Paoli, Pennsylvania, part of Main Line Health System. Dr. Hahn is also affiliated with Chester County Hospital. The medical group on file is Axia Women's Health. Dmand AI also links Dr. Hahn to 3 more hospitals and 1 medical group, 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. Nancey Mae Hahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hahn practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Paoli Hospital | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Main Line Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nancey Mae Hahn is one of 1,573 OB-GYNs in Pennsylvania
Obstetrics and gynecology is Dr. Hahn's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dmand AI has Dr. Hahn's licenses on file in 2 states: Pennsylvania and Texas.
Specialties and state licenses
- Obstetrics and gynecology, PennsylvaniaPrimary
- Texas license
OB-GYNs near Dr. Hahn
Counts of OB-GYNs 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. Nancey Mae Hahn billed Medicare for 173 services in 2024
CMS data shows 173 Medicare services from Dr. Hahn across 4 procedure codes in 2024, for 136 Medicare patients. Medicare paid $8,861 for them. Every service was in an office.
Dr. Hahn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1112024: 12714%
- Office and hospital visits
- 2023: 252024: 4684%
- Imaging
- 2023: 382024: 0100%
Dr. Hahn compared with the Pennsylvania median for OB-GYNs, 2024
- Dr. Hahn
- Pennsylvania median
- Medicare services
- 173vs 583.0 times
- Medicare patients
- 136vs 522.6 times
- Part D claims
- 71vs 3982% above
Medians across 1,317 OB-GYNs in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Hahn'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. Hahn and other OB-GYNs in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nancey Mae Hahn treated 136 Medicare patients in 2024, average age 72
CMS counts 136 Medicare patients who saw Dr. Hahn in 2024. The largest group is 65 to 74, with 90 patients. 75% of them have high cholesterol, and 47% have high blood pressure. Their average risk score is 0.68, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hahn's median patient age at 41, with 98% women.
Dr. Hahn's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Hahn's Medicare patients, 2024
- High cholesterol75%
- High blood pressure47%
- Arthritis46%
- Osteoporosis34%
- Anxiety22%
- Ischemic heart disease18%
- Cancer13%
- Depression13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hahn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women98%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nancey Mae Hahn wrote 133 Medicare Part D claims in 2024
In 2024, Dr. Hahn wrote 133 Medicare Part D claims for 41 patients. 81% of them were for generic drugs. CMS names the drug for 71 of them, across 3 drugs with 11 or more claims each, at $8,108 in total drug cost. In 2023, CMS named 42 claims across 2 drugs.
Dr. Hahn's Part D claims by kind of drug, 2024
- Generic108 claims81%
- Brand-name25 claims19%
Dr. Hahn'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 422024: 7169%
Drugs named by CMS: 3 in 2024, 2 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
How Dr. Nancey Mae Hahn takes part in Medicare
Dr. Hahn accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nancey Mae Hahn received $3,430 in industry payments from 2016 to 2025
CMS Open Payments shows 164 general payments to Dr. Hahn from 41 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. Abbvie Inc. paid the most, $476.
General payments to Dr. Hahn by program year, 2016 to 2025
General payments to Dr. Hahn by kind, 2016 to 2025
- Food and beverage$3,26895%
- Education$1625%
Companies that paid Dr. Hahn 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. Nancey Mae Hahn graduated from University of Texas Medical School at San Antonio
Dr. Hahn graduated from University of Texas Medical School at San Antonio in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nancey Mae Hahn'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) |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Nancey Mae Hahn
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. Nancey Mae Hahn's NPI number?
Dr. Nancey Mae Hahn's NPI number is 1518128024. It was assigned on June 18, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Nancey Mae Hahn?
Dr. Nancey Mae Hahn is an OB-GYN in Paoli, Pennsylvania. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Nancey Mae Hahn practice?
Dr. Hahn practices at 255 West Lancaster Avenue, Paoli, PA 19301. Dr. Hahn's primary practice is Paoli Hospital in Paoli, Pennsylvania, part of Main Line Health System. Dmand AI also links Dr. Hahn to 3 hospitals and 1 medical group.
What is Dr. Nancey Mae Hahn's office phone number?
The practice phone on file for Dr. Hahn is (610) 648-1000.
What is Dr. Nancey Mae Hahn's medical license number?
Dr. Hahn holds Pennsylvania license MD445306, one of the licenses on file in 2 states.
Which states has Dr. Nancey Mae Hahn been licensed in?
Dmand AI has state licenses on file for Dr. Hahn in Pennsylvania and Texas.
Which hospitals is Dr. Nancey Mae Hahn affiliated with?
Dr. Hahn practices at Paoli Hospital in Paoli, Pennsylvania. Dr. Hahn is also affiliated with Chester County Hospital. Dmand AI links Dr. Hahn to 3 more hospitals.
What medical group is Dr. Nancey Mae Hahn part of?
Dr. Hahn is linked to Axia Women's Health. Dmand AI links Dr. Hahn to 1 more medical group.
Does Dr. Nancey Mae Hahn accept Medicare?
Yes. CMS data shows Dr. Hahn billed Medicare for 173 services in 2024, and Dr. Hahn accepts Medicare assignment.
How many Medicare patients does Dr. Nancey Mae Hahn see?
CMS counts 136 Medicare patients who saw Dr. Hahn in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Dr. Nancey Mae Hahn bill to Medicare?
In 2024, Dr. Hahn's most billed Medicare services were medicare service (G0101), medicare temporary code (Q0091) and office visit, established patient (99213).
Where did Dr. Nancey Mae Hahn go to medical school?
Dr. Hahn graduated from University of Texas Medical School at San Antonio in 2008.
What drugs does Dr. Nancey Mae Hahn prescribe most?
In 2024 Medicare Part D data, Dr. Hahn's most prescribed drugs by claims were Estradiol, Nikki and Premarin.
Has Dr. Nancey Mae Hahn received payments from drug or device companies?
CMS Open Payments shows $3,430 in general payments to Dr. Hahn from 41 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Nancey Mae Hahn been practicing?
Dr. Hahn graduated from medical school in 2008, 18 years ago.
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