Dr. Martha L. Ehrmann, MD
- Medicare services, 2024
- 416
- Medicare patients, 2024
- 196
- Part D claims, 2024
- 274
- Hospital affiliations
- 3
- Industry payments
- $3,254
- Practice address
- 45 Colpitts Rd, Weston, MA 02493
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gynecology Partners PC - HOPD
Acute Care Hospital outpatient department · Weston, Massachusetts
Find Dr. Ehrmann's professional email, personal email and mobile number
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Dr. Martha L. Ehrmann is an OB-GYN in Weston, Massachusetts
Dr. Ehrmann practices at Gynecology Partners PC - HOPD in Weston, Massachusetts.
Dr. Ehrmann's NPI, 1639145428, was assigned on February 23, 2006. Dr. Ehrmann graduated from Duke University School of Medicine in 1991. Dr. Ehrmann holds Massachusetts license 80779.
- NPI
- 1639145428NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931094869
- NPI enumeration date
- February 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Martha L. Ehrmann practices at Gynecology Partners PC - HOPD in Weston, Massachusetts
Dr. Ehrmann's primary practice is Gynecology Partners PC - HOPD, at 45 Colpitts Rd, Weston, MA 02493.
- Gynecology Partners PC - HOPD45 Colpitts Rd, Weston, MA 02493
Source: Dmand AI Affiliation Data
Dr. Martha L. Ehrmann is affiliated with 6 sites of care and 2 medical groups
Dr. Ehrmann's primary practice is Gynecology Partners PC - HOPD in Weston, Massachusetts. Dr. Ehrmann is also affiliated with Brigham and Women's Hospital. The medical group on file is Gynecology Partners. Dmand AI also links Dr. Ehrmann to 2 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account. Dr. Ehrmann's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Martha L. Ehrmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ehrmann practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gynecology Partners PC - HOPD | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Martha L. Ehrmann is one of 903 OB-GYNs in Massachusetts
Obstetrics and gynecology is Dr. Ehrmann's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Ehrmann is licensed in Massachusetts.
Specialties and state licenses
- Obstetrics and gynecology, MassachusettsPrimary
OB-GYNs near Dr. Ehrmann
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. Martha L. Ehrmann billed Medicare for 416 services in 2024
CMS data shows 416 Medicare services from Dr. Ehrmann across 4 procedure codes in 2024, for 196 Medicare patients. Medicare paid $25,389 for them. Every service was in an office.
Dr. Ehrmann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 2022024: 2177%
- Office and hospital visits
- 2023: 2052024: 1993%
Dr. Ehrmann compared with the Massachusetts median for OB-GYNs, 2024
- Dr. Ehrmann
- Massachusetts median
- Medicare services
- 416vs 587.2 times
- Medicare patients
- 196vs 563.5 times
- Part D claims
- 163vs 295.6 times
Medians across 803 OB-GYNs in Massachusetts with Dmand AI profiles that report each measure.
Dr. Ehrmann'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. Ehrmann and other OB-GYNs in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Martha L. Ehrmann treated 196 Medicare patients in 2024, average age 74
CMS counts 196 Medicare patients who saw Dr. Ehrmann in 2024. The largest group is 65 to 74, with 102 patients. 73% of them have high cholesterol, and 53% have high blood pressure. Their average risk score is 0.70, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ehrmann's median patient age at 65, with 100% women.
Dr. Ehrmann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Ehrmann's Medicare patients, 2024
- High cholesterol73%
- High blood pressure53%
- Arthritis50%
- Osteoporosis33%
- Cancer22%
- Anxiety21%
- Mood disorders19%
- Depression16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ehrmann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Martha L. Ehrmann wrote 274 Medicare Part D claims in 2024
In 2024, Dr. Ehrmann wrote 274 Medicare Part D claims for 104 patients. 84% of them were for generic drugs. CMS names the drug for 163 of them, across 6 drugs with 11 or more claims each, at $20,552 in total drug cost. In 2023, CMS named 112 claims across 4 drugs.
Dr. Ehrmann's Part D claims by kind of drug, 2024
- Generic230 claims84%
- Brand-name44 claims16%
Dr. Ehrmann'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. Ehrmann's Part D claims, 2024
- Antibiotics4%11 of 274 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: 1122024: 16346%
Drugs named by CMS: 6 in 2024, 4 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. Martha L. Ehrmann offers telehealth to Medicare patients
Dr. Ehrmann accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ehrmann as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Martha L. Ehrmann received $3,254 in industry payments from 2016 to 2025
CMS Open Payments shows 105 general payments to Dr. Ehrmann from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 91% of the total. Astellas Pharma US Inc paid the most, $639.
General payments to Dr. Ehrmann by program year, 2016 to 2025
General payments to Dr. Ehrmann by kind, 2016 to 2025
- Food and beverage$2,95091%
- Education$3049%
Companies that paid Dr. Ehrmann 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. Martha L. Ehrmann graduated from Duke University School of Medicine
Dr. Ehrmann graduated from Duke University School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Martha L. Ehrmann'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 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. Martha L. Ehrmann
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. Martha L. Ehrmann's NPI number?
Dr. Martha L. Ehrmann's NPI number is 1639145428. It was assigned on February 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Martha L. Ehrmann?
Dr. Martha L. Ehrmann is an OB-GYN in Weston, Massachusetts. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Martha L. Ehrmann practice?
Dr. Ehrmann practices at 45 Colpitts Rd, Weston, MA 02493. Dr. Ehrmann's primary practice is Gynecology Partners PC - HOPD in Weston, Massachusetts. Dmand AI also links Dr. Ehrmann to 2 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Martha L. Ehrmann's medical license number?
Dr. Ehrmann holds Massachusetts license 80779.
Which hospitals is Dr. Martha L. Ehrmann affiliated with?
Dr. Ehrmann is affiliated with Brigham and Women's Hospital. Dmand AI links Dr. Ehrmann to 2 more hospitals.
What medical group is Dr. Martha L. Ehrmann part of?
Dr. Ehrmann is linked to Gynecology Partners. Dmand AI links Dr. Ehrmann to 1 more medical group.
Does Dr. Martha L. Ehrmann accept Medicare?
Yes. CMS data shows Dr. Ehrmann billed Medicare for 416 services in 2024, and Dr. Ehrmann accepts Medicare assignment.
Does Dr. Martha L. Ehrmann offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ehrmann as offering telehealth services.
How many Medicare patients does Dr. Martha L. Ehrmann see?
CMS counts 196 Medicare patients who saw Dr. Ehrmann in 2024, with an average age of 74.
What services does Dr. Martha L. Ehrmann bill to Medicare?
In 2024, Dr. Ehrmann's most billed Medicare services were office visit, established patient (99213), medicare service (G0101) and medicare temporary code (Q0091).
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Where did Dr. Martha L. Ehrmann go to medical school?
Dr. Ehrmann graduated from Duke University School of Medicine in 1991.
What drugs does Dr. Martha L. Ehrmann prescribe most?
In 2024 Medicare Part D data, Dr. Ehrmann's most prescribed drugs by claims were Estradiol, Yuvafem and Alendronate Sodium.
Has Dr. Martha L. Ehrmann received payments from drug or device companies?
CMS Open Payments shows $3,254 in general payments to Dr. Ehrmann from 18 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Martha L. Ehrmann been practicing?
Dr. Ehrmann graduated from medical school in 1991, 35 years ago.
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