Physician Profile
Unclaimed ProfileAbout SIA
John Patrick Aguilar Sia, MD is a healthcare provider in Manchester, NH specializing in nephrology. According to Medicare claims data, John Patrick cared for 712 Medicare patients across 2,130 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Sia's specialty?
Dr. Sia is a nephrology in Manchester, NH. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEPHROLOGY”.
NPI registry
Where can I find Dr. Sia?
Dr. Sia is listed at 1750 ELM STREET SUITE 201C, Manchester, NH 03104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Sia?
The number on file is (603) 621-2948. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Sia's NPI number?
Dr. Sia's National Provider Identifier is 1255597464. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Sia's medical education?
Dr. Sia attended Other, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Sia been practicing?
Dr. Sia has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Sia known for?
According to Medicare billing data, Dr. Sia provides treatments such as dialysis services, per day, less than full month service and dialysis services, 4 or more physician visits per month, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Sia confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sia. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (603) 621-2948
- Email not available
Practice Locations
1750 ELM STREET SUITE 201C
Manchester, NH 03104
Procedures Most Often Billed to Medicare
2,130 services · 712 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dialysis services, per day, less than full month service (20 years or older) | Treatment | 90970 |
675 |
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
351 |
| Home dialysis services per month (20 years or older) | Treatment | 90966 |
186 |
| Hemodialysis procedure with physician evaluation | Treatment | 90935 |
155 |
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
102 |
| Dialysis procedure including 1 evaluation | Treatment | 90945 |
64 |
| Dialysis services, 1 physician visit per month (20 years or older) | Treatment | 90962 |
16 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
357 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
72 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
65 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nephrology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nephrology specialists in Manchester 3
Same specialty, same city.
More connections — 19 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2006 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Dialysis services, per day, less than full month service (20 years or older) 3
Providers in NH who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.