Marcella Pierce, PA-C
- Medicare services, 2024
- 52
- Medicare patients, 2024
- 57
- Part D claims, 2024
- 194
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 844 Old Tunnel Road, Grass Valley, CA 95945
- Practice phone
- Call (530) 273-4984
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd)
FQHC - Main Site · Grass Valley, California
Find Marcella Pierce's professional email, personal email and mobile number
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Marcella Pierce is a physician assistant in Grass Valley, California
Marcella Pierce practices at Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) in Grass Valley, California.
Marcella Pierce's NPI, 1558801399, was assigned on February 27, 2017. Marcella Pierce holds California license 54217.
- NPI
- 1558801399NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002158284
- NPI enumeration date
- February 27, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 273-4984
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marcella Pierce practices at Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) in Grass Valley, California
Marcella Pierce's primary practice is Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd), at 844 Old Tunnel Road, Grass Valley, CA 95945 in Nevada County. The practice phone is (530) 273-4984.
- Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd)844 Old Tunnel Road, Grass Valley, CA 95945 · Nevada CountyPhone(530) 273-4984
Source: Dmand AI Affiliation Data
Marcella Pierce is affiliated with 3 sites of care and 1 medical group
Marcella Pierce's primary practice is Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) in Grass Valley, California. Marcella Pierce is also affiliated with Dignity Health - Sierra Nevada Memorial Hospital. The medical group on file is Western Sierra Medical Clinic. Dmand AI also links Marcella Pierce to 1 more urgent care center, named with a free account. Marcella Pierce's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marcella Pierce's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marcella Pierce practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Marcella Pierce is one of 11,482 physician assistants in California
Physician assistant is Marcella Pierce's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marcella Pierce is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Marcella Pierce
Counts of physician assistants 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
Marcella Pierce billed Medicare for 52 services in 2024
CMS data shows 52 Medicare services from Marcella Pierce across 1 procedure code in 2024, for 57 Medicare patients. Medicare paid $177 for them. Every service was in an office.
Marcella Pierce compared with the California median for physician assistants, 2024
- Marcella Pierce
- California median
- Medicare services
- 52vs 20475% below
- Medicare patients
- 57vs 10546% below
- Part D claims
- 53vs 24378% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Marcella Pierce'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 Marcella Pierce and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Marcella Pierce treated 57 Medicare patients in 2024, average age 69
CMS counts 57 Medicare patients who saw Marcella Pierce in 2024. The largest group is 65 to 74, with 29 patients. 65% of them have high cholesterol, and 51% have high blood pressure. 44% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Marcella Pierce's median patient age at 36, with 69% women.
Marcella Pierce's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marcella Pierce's Medicare patients by sex, 2024
- Women4375%
- Men1425%
Chronic conditions among Marcella Pierce's Medicare patients, 2024
- High cholesterol65%
- High blood pressure51%
- Arthritis46%
- Anxiety35%
- Mood disorders30%
- COPD25%
- Depression25%
- Diabetes19%
Share of Medicare patients with each condition. A patient can have several.
Marcella Pierce's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marcella Pierce wrote 194 Medicare Part D claims in 2024
In 2024, Marcella Pierce wrote 194 Medicare Part D claims for 123 patients. 86% of them were for generic drugs. CMS names the drug for 53 of them, across 3 drugs with 11 or more claims each, at $834 in total drug cost.
Marcella Pierce's Part D claims by kind of drug, 2024
- Generic167 claims86%
- Brand-name and other27 claims14%
Marcella Pierce'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 Marcella Pierce's Part D claims, 2024
- Antibiotics28%54 of 194 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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 Marcella Pierce takes part in Medicare
Marcella Pierce 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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Sources for Marcella Pierce'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) |
| 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 Marcella Pierce
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marcella Pierce's NPI number?
Marcella Pierce's NPI number is 1558801399. It was assigned on February 27, 2017, and it is active in the NPI Registry.
What does Marcella Pierce specialize in?
Marcella Pierce is a physician assistant in Grass Valley, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marcella Pierce practice?
Marcella Pierce practices at 844 Old Tunnel Road, Grass Valley, CA 95945. Marcella Pierce's primary practice is Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) in Grass Valley, California. Dmand AI also links Marcella Pierce to 1 urgent care center.
What is Marcella Pierce's office phone number?
The practice phone on file for Marcella Pierce is (530) 273-4984.
What is Marcella Pierce's medical license number?
Marcella Pierce holds California license 54217.
Which hospitals is Marcella Pierce affiliated with?
Marcella Pierce is affiliated with Dignity Health - Sierra Nevada Memorial Hospital.
What medical group is Marcella Pierce part of?
Marcella Pierce is linked to Western Sierra Medical Clinic.
Does Marcella Pierce accept Medicare?
Yes. CMS data shows Marcella Pierce billed Medicare for 52 services in 2024, and Marcella Pierce accepts Medicare assignment.
How many Medicare patients does Marcella Pierce see?
CMS counts 57 Medicare patients who saw Marcella Pierce in 2024, with an average age of 69.
What services does Marcella Pierce bill to Medicare?
In 2024, Marcella Pierce's most billed Medicare services were lab and pathology test (81002).
What drugs does Marcella Pierce prescribe most?
In 2024 Medicare Part D data, Marcella Pierce's most prescribed drugs by claims were Cephalexin, Albuterol Sulfate Hfa and Sulfamethoxazole-Trimethoprim.
How long has Marcella Pierce been practicing?
Marcella Pierce graduated from medical school in 2016, 10 years ago.
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