Quick answers
- Does Ahmad D. Siddiqui accept Medicare assignment?
- Yes. Medicare's clinician data says Ahmad D. Siddiqui accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Ahmad D. Siddiqui see?
- In 2024, CMS data shows 419 Original Medicare patients and 1,777 services for Ahmad D. Siddiqui. This counts Original Medicare only and measures volume, not quality.
- What is Ahmad D. Siddiqui's NPI number?
- 1700873783. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Ahmad D. Siddiqui, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 419 |
|---|---|
| Services billed to Medicare | 1,777 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)549 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)453 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)304 services
- Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)118 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)99 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure70%
- High cholesterol59%
- Arthritis44%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)40%
- Anxiety32%
- Chronic kidney disease31%
Hospitals where Ahmad D. Siddiqui works
Medicare's Facility Affiliation Data lists Ahmad D. Siddiqui at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
- Heywood Hospital -Gardner, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220095
- Huggins HospitalWolfeboro, NH · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 301312
- The Cooley Dickinson Hospital IncNorthampton, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220015
- Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300018
Practice locations
Addresses where Ahmad D. Siddiqui is enrolled with Medicare (CMS data updated October 2, 2026).
- 121 Corporate Dr, Bldg CPortsmouth, NH 03801 (603) 740‑8787
- 30 Locust StNorthampton, MA 01060 (413) 582‑2898
- 55 Fruit StBoston, MA 02114 (617) 724‑0287
- 789 Central AveDover, NH 03820 (603) 742‑8787
Group practices
Medicare enrollment lists Ahmad D. Siddiqui as a member of these groups (CMS data updated October 2, 2026).
- Massachusetts General Physicians Organization Inc3,558 clinicians in the group
- Wentworth Douglass Physician Corporation429 clinicians in the group
- Mass General Brigham Medical Group Western Massachusetts Inc291 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Portsmouth
Clinicians with the same Medicare primary specialty in Portsmouth, NH — not a recommendation.
Other clinicians in Massachusetts General Physicians Organization Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1700873783 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians