Mary Ann Mcmahon, M.D.
NPI 1699773416 · Internal Medicine Physician · Cherry Hill, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ann Mcmahon, M.D. is a Internal Medicine Physician provider in Cherry Hill, NJ (NPI 1699773416).
Provider details
- NPI number
- 1699773416
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 25MA073505 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
505 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 166 | $143 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 125 | $148 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 103 | $101 |
| Administration of Influenza Virus VaccineG0008 | 63 | $34 |
| Administration of Pneumococcal VaccineG0009 | 28 | $34 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 241 | 66 |
| Lisinopril | 181 | 47 |
| Levothyroxine Sodium | 144 | 45 |
| Rosuvastatin Calcium | 119 | 38 |
| Amlodipine Besylate | 101 | 29 |
| Escitalopram Oxalate | 85 | 24 |
| Simvastatin |
Practice location
Mailing address
Additional practice locations (2)
- 457 Haddonfield Rd Ste 110Cherry Hill, NJ 08002-2223Phone: (844) 542-2273Fax: (856) 406-4570
- 1305 Kings Hwy NCherry Hill, NJ 08034-1919Phone: (856) 428-9446Fax: (856) 428-4330
Registry dates
- Enumerated
- 2005-07-14
- Last updated
- 2020-10-02
- Certified
- 2020-10-02
Frequently asked questions
- What is Mary Ann Mcmahon's NPI number?
- Mary Ann Mcmahon's National Provider Identifier (NPI) is 1699773416, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ann Mcmahon's specialty?
- Mary Ann Mcmahon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Ann Mcmahon located?
- Mary Ann Mcmahon's practice location on file with NPPES is 2339 Route 70 W Ste 200, Cherry Hill, NJ 08002-3315.
- What is Mary Ann Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for Mary Ann Mcmahon is (856) 536-1515.
- Does Mary Ann Mcmahon accept Medicare?
- Mary Ann Mcmahon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ann Mcmahon's NPI active?
- Yes — Mary Ann Mcmahon's NPI (1699773416) is active in the NPPES registry as of the last update on 2020-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.